20021220010200 has 96 divisors (see below), whose sum is σ = 62289846743760. Its totient is φ = 5319717619200.

The previous prime is 20021220010163. The next prime is 20021220010217. The reversal of 20021220010200 is 201002212002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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, 60066111 + ... + 60398510.

Almost surely, 2^{20021220010200} is an apocalyptic number.

20021220010200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20021220010200 is an abundant number, since it is smaller than the sum of its proper divisors (42268626733560).

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

20021220010200 is a wasteful number, since it uses less digits than its factorization.

20021220010200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120464917 (or 120464908 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20021220010200 its reverse (201002212002), we get a palindrome (20222222222202).

The spelling of 20021220010200 in words is "twenty trillion, twenty-one billion, two hundred twenty million, ten thousand, two hundred".