10021220010120 has 128 divisors (see below), whose sum is σ = 33245990490240. Its totient is φ = 2396107376640.

The previous prime is 10021220010107. The next prime is 10021220010133. The reversal of 10021220010120 is 2101002212001.

It is an interprime number because it is at equal distance from previous prime (10021220010107) and next prime (10021220010133).

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 = 10021220010096 and 10021220010105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51902499 + ... + 52095218.

It is an arithmetic number, because the mean of its divisors is an integer number (259734300705).

Almost surely, 2^{10021220010120} is an apocalyptic number.

10021220010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10021220010120 is an abundant number, since it is smaller than the sum of its proper divisors (23224770480120).

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

10021220010120 is a wasteful number, since it uses less digits than its factorization.

10021220010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103997815 (or 103997811 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10021220010120 its reverse (2101002212001), we get a palindrome (12122222222121).

The spelling of 10021220010120 in words is "ten trillion, twenty-one billion, two hundred twenty million, ten thousand, one hundred twenty".