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122010220 = 2256100511
BaseRepresentation
bin1110100010110…
…11101001101100
322111120202120001
413101123221230
5222213311340
620035034044
73011032633
oct721335154
9274522501
10122010220
11629650a2
1234a3b924
131c37bbc7
14122c051a
15aaa129a
hex745ba6c

122010220 has 12 divisors (see below), whose sum is σ = 256221504. Its totient is φ = 48804080.

The previous prime is 122010211. The next prime is 122010247. The reversal of 122010220 is 22010221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 122010197 and 122010206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3050236 + ... + 3050275.

It is an arithmetic number, because the mean of its divisors is an integer number (21351792).

Almost surely, 2122010220 is an apocalyptic number.

122010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122010220 is an abundant number, since it is smaller than the sum of its proper divisors (134211284).

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

122010220 is a wasteful number, since it uses less digits than its factorization.

122010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100520 (or 6100518 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 122010220 is about 11045.8236451611. The cubic root of 122010220 is about 495.9814151465.

Adding to 122010220 its reverse (22010221), we get a palindrome (144020441).

Subtracting from 122010220 its reverse (22010221), we obtain a palindrome (99999999).

The spelling of 122010220 in words is "one hundred twenty-two million, ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6100511 12201022 24402044 30502555 61005110 122010220