20102010220120 has 32 divisors (see below), whose sum is σ = 45409720320720. Its totient is φ = 8008769008000.

The previous prime is 20102010220079. The next prime is 20102010220133. The reversal of 20102010220120 is 2102201020102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20102010220120.

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, 1001086087 + ... + 1001106166.

Almost surely, 2^{20102010220120} is an apocalyptic number.

20102010220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102010220120 is an abundant number, since it is smaller than the sum of its proper divisors (25307710100600).

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

20102010220120 is a wasteful number, since it uses less digits than its factorization.

20102010220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002192515 (or 2002192511 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20102010220120 its reverse (2102201020102), we get a palindrome (22204211240222).

The spelling of 20102010220120 in words is "twenty trillion, one hundred two billion, ten million, two hundred twenty thousand, one hundred twenty".