20012122200 has 96 divisors (see below), whose sum is σ = 70900104960. Its totient is φ = 4574198400.

The previous prime is 20012122177. The next prime is 20012122223. The reversal of 20012122200 is 222121002.

It is an interprime number because it is at equal distance from previous prime (20012122177) and next prime (20012122223).

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, 2378196 + ... + 2386595.

It is an arithmetic number, because the mean of its divisors is an integer number (738542760).

Almost surely, 2^20012122200 is an apocalyptic number.

20012122200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012122200 is an abundant number, since it is smaller than the sum of its proper divisors (50887982760).

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

20012122200 is a wasteful number, since it uses less digits than its factorization.

20012122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4764817 (or 4764808 counting only the distinct ones).

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

Adding to 20012122200 its reverse (222121002), we get a palindrome (20234243202).

The spelling of 20012122200 in words is "twenty billion, twelve million, one hundred twenty-two thousand, two hundred".