20425213100120 has 32 divisors (see below), whose sum is σ = 45956873495520. Its totient is φ = 8170059636480.

The previous prime is 20425213100119. The next prime is 20425213100207. The reversal of 20425213100120 is 2100131252402.

It is a super-2 number, since 2×20425213100120² (a number of 27 digits) contains 22 as substring.

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, 17027300 + ... + 18187340.

It is an arithmetic number, because the mean of its divisors is an integer number (1436152296735).

Almost surely, 2^{20425213100120} is an apocalyptic number.

20425213100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20425213100120 is an abundant number, since it is smaller than the sum of its proper divisors (25531660395400).

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

20425213100120 is a wasteful number, since it uses less digits than its factorization.

20425213100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600235 (or 1600231 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 20425213100120 its reverse (2100131252402), we get a palindrome (22525344352522).

The spelling of 20425213100120 in words is "twenty trillion, four hundred twenty-five billion, two hundred thirteen million, one hundred thousand, one hundred twenty".