10100120121020 has 24 divisors (see below), whose sum is σ = 21223450985184. Its totient is φ = 4037534004416.

The previous prime is 10100120121011. The next prime is 10100120121041. The reversal of 10100120121020 is 2012102100101.

It is a junction number, because it is equal to n+sod(n) for n = 10100120120992 and 10100120121010.

It is a congruent number.

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, 157094807 + ... + 157159086.

It is an arithmetic number, because the mean of its divisors is an integer number (884310457716).

Almost surely, 2^{10100120121020} is an apocalyptic number.

10100120121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10100120121020 is an abundant number, since it is smaller than the sum of its proper divisors (11123330864164).

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

10100120121020 is a wasteful number, since it uses less digits than its factorization.

10100120121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314255509 (or 314255507 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10100120121020 its reverse (2012102100101), we get a palindrome (12112222221121).

The spelling of 10100120121020 in words is "ten trillion, one hundred billion, one hundred twenty million, one hundred twenty-one thousand, twenty".