10010121011220 has 144 divisors (see below), whose sum is σ = 31090653538560. Its totient is φ = 2404432546560.

The previous prime is 10010121011179. The next prime is 10010121011243. The reversal of 10010121011220 is 2211012101001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10010121011196 and 10010121011205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5533452 + ... + 7116131.

It is an arithmetic number, because the mean of its divisors is an integer number (215907316240).

Almost surely, 2^{10010121011220} is an apocalyptic number.

10010121011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10010121011220 is an abundant number, since it is smaller than the sum of its proper divisors (21080532527340).

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

10010121011220 is a wasteful number, since it uses less digits than its factorization.

10010121011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12649726 (or 12649713 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10010121011220 its reverse (2211012101001), we get a palindrome (12221133112221).

The spelling of 10010121011220 in words is "ten trillion, ten billion, one hundred twenty-one million, eleven thousand, two hundred twenty".