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122220202122020 = 2258836920736247
BaseRepresentation
bin11011110010100010011011…
…101110110101101100100100
3121000202010201000202200221102
4123302202123232311230210
5112004423433220401040
61111535104041335232
734513055354636162
oct3362423356655444
9530663630680842
10122220202122020
1135a41329907502
121185b116497518
135327414505c62
1422276bca9c232
15e1e36444b515
hex6f289bbb5b24

122220202122020 has 24 divisors (see below), whose sum is σ = 256953095415744. Its totient is φ = 48832714951776.

The previous prime is 122220202122019. The next prime is 122220202122047. The reversal of 122220202122020 is 20221202022221.

It is a super-2 number, since 2×1222202021220202 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 122220202121983 and 122220202122001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3460350464 + ... + 3460385783.

It is an arithmetic number, because the mean of its divisors is an integer number (10706378975656).

Almost surely, 2122220202122020 is an apocalyptic number.

122220202122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122220202122020 is an abundant number, since it is smaller than the sum of its proper divisors (134732893293724).

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

122220202122020 is a wasteful number, since it uses less digits than its factorization.

122220202122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6920737139 (or 6920737137 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 122220202122020 its reverse (20221202022221), we get a palindrome (142441404144241).

The spelling of 122220202122020 in words is "one hundred twenty-two trillion, two hundred twenty billion, two hundred two million, one hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 883 1766 3532 4415 8830 17660 6920736247 13841472494 27682944988 34603681235 69207362470 138414724940 6111010106101 12222020212202 24444040424404 30555050530505 61110101061010 122220202122020