20102211030120 has 64 divisors (see below), whose sum is σ = 60361909957440. Its totient is φ = 5355676108800.

The previous prime is 20102211030091. The next prime is 20102211030127. The reversal of 20102211030120 is 2103011220102.

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 20102211030120.

It is not an unprimeable number, because it can be changed into a prime (20102211030127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76641961 + ... + 76903800.

It is an arithmetic number, because the mean of its divisors is an integer number (943154843085).

Almost surely, 2^{20102211030120} is an apocalyptic number.

20102211030120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102211030120 is an abundant number, since it is smaller than the sum of its proper divisors (40259698927320).

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

20102211030120 is a wasteful number, since it uses less digits than its factorization.

20102211030120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153546866 (or 153546862 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20102211030120 its reverse (2103011220102), we get a palindrome (22205222250222).

The spelling of 20102211030120 in words is "twenty trillion, one hundred two billion, two hundred eleven million, thirty thousand, one hundred twenty".