20122102002120 has 128 divisors (see below), whose sum is σ = 62450144640000. Its totient is φ = 5180677053440.

The previous prime is 20122102002049. The next prime is 20122102002169. The reversal of 20122102002120 is 2120020122102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20122102002120.

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, 115271305 + ... + 115445735.

It is an arithmetic number, because the mean of its divisors is an integer number (487891755000).

Almost surely, 2^{20122102002120} is an apocalyptic number.

20122102002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122102002120 is an abundant number, since it is smaller than the sum of its proper divisors (42328042637880).

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

20122102002120 is a wasteful number, since it uses less digits than its factorization.

20122102002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207623 (or 207619 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20122102002120 its reverse (2120020122102), we get a palindrome (22242122124222).

The spelling of 20122102002120 in words is "twenty trillion, one hundred twenty-two billion, one hundred two million, two thousand, one hundred twenty".