20102211220200 has 96 divisors (see below), whose sum is σ = 63017044329600. Its totient is φ = 5300358300160.

The previous prime is 20102211220177. The next prime is 20102211220219. The reversal of 20102211220200 is 202211220102.

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 20102211220200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 188169552 + ... + 188276351.

It is an arithmetic number, because the mean of its divisors is an integer number (656427545100).

Almost surely, 2^{20102211220200} is an apocalyptic number.

20102211220200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102211220200 is an abundant number, since it is smaller than the sum of its proper divisors (42914833109400).

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

20102211220200 is a wasteful number, since it uses less digits than its factorization.

20102211220200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376446011 (or 376446002 counting only the distinct ones).

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

Adding to 20102211220200 its reverse (202211220102), we get a palindrome (20304422440302).

The spelling of 20102211220200 in words is "twenty trillion, one hundred two billion, two hundred eleven million, two hundred twenty thousand, two hundred".