10012120111020 has 24 divisors (see below), whose sum is σ = 28033936311024. Its totient is φ = 2669898696256.

The previous prime is 10012120110959. The next prime is 10012120111027. The reversal of 10012120111020 is 2011102121001.

10012120111020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10012120111020² (a number of 27 digits) contains 22 as substring.

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 = 10012120110987 and 10012120111005.

It is not an unprimeable number, because it can be changed into a prime (10012120111027) 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, 83434334199 + ... + 83434334318.

It is an arithmetic number, because the mean of its divisors is an integer number (1168080679626).

Almost surely, 2^{10012120111020} is an apocalyptic number.

10012120111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10012120111020 is an abundant number, since it is smaller than the sum of its proper divisors (18021816200004).

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

10012120111020 is a wasteful number, since it uses less digits than its factorization.

10012120111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166868668529 (or 166868668527 counting only the distinct ones).

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

Adding to 10012120111020 its reverse (2011102121001), we get a palindrome (12023222232021).

The spelling of 10012120111020 in words is "ten trillion, twelve billion, one hundred twenty million, one hundred eleven thousand, twenty".