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122102101010220 = 22353755000946401
BaseRepresentation
bin11011110000110100011100…
…010110110110011100101100
3121000022211212100200121100120
4123300310130112312130230
5112001010100324311340
61111404533020524540
734501404614023032
oct3360643426663454
9530284770617316
10122102101010220
11359a6234909181
12118402566b0750
135319242853396
142221ab7a10552
15e1b2510344d0
hex6f0d1c5b672c

122102101010220 has 48 divisors (see below), whose sum is σ = 351126041830368. Its totient is φ = 31680545126400.

The previous prime is 122102101010203. The next prime is 122102101010381. The reversal of 122102101010220 is 22010101201221.

It is a super-2 number, since 2×1221021010102202 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 122102101010220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27500470981 + ... + 27500475420.

It is an arithmetic number, because the mean of its divisors is an integer number (7315125871466).

Almost surely, 2122102101010220 is an apocalyptic number.

122102101010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122102101010220 is an abundant number, since it is smaller than the sum of its proper divisors (229023940820148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122102101010220 is a wasteful number, since it uses less digits than its factorization.

122102101010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55000946450 (or 55000946448 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122102101010220 its reverse (22010101201221), we get a palindrome (144112202211441).

The spelling of 122102101010220 in words is "one hundred twenty-two trillion, one hundred two billion, one hundred one million, ten thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 111 148 185 222 370 444 555 740 1110 2220 55000946401 110001892802 165002839203 220003785604 275004732005 330005678406 550009464010 660011356812 825014196015 1100018928020 1650028392030 2035035016837 3300056784060 4070070033674 6105105050511 8140140067348 10175175084185 12210210101022 20350350168370 24420420202044 30525525252555 40700700336740 61051050505110 122102101010220