10010121020 has 24 divisors (see below), whose sum is σ = 21317331168. Its totient is φ = 3947652800.

The previous prime is 10010120963. The next prime is 10010121029. The reversal of 10010121020 is 2012101001.

It is a junction number, because it is equal to n+sod(n) for n = 10010120989 and 10010121007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10010121029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3523271 + ... + 3526110.

It is an arithmetic number, because the mean of its divisors is an integer number (888222132).

Almost surely, 2^10010121020 is an apocalyptic number.

10010121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10010121020 is an abundant number, since it is smaller than the sum of its proper divisors (11307210148).

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

10010121020 is a wasteful number, since it uses less digits than its factorization.

10010121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7049461 (or 7049459 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10010121020 its reverse (2012101001), we get a palindrome (12022222021).

It can be divided in two parts, 100101 and 21020, that added together give a palindrome (121121).

The spelling of 10010121020 in words is "ten billion, ten million, one hundred twenty-one thousand, twenty".