20112112212200 has 48 divisors (see below), whose sum is σ = 48793733117280. Its totient is φ = 7695069018560.

The previous prime is 20112112212149. The next prime is 20112112212251. The reversal of 20112112212200 is 221221121102.

It is an interprime number because it is at equal distance from previous prime (20112112212149) and next prime (20112112212251).

It is a super-2 number, since 2×20112112212200² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2186094554 + ... + 2186103753.

It is an arithmetic number, because the mean of its divisors is an integer number (1016536106610).

Almost surely, 2^{20112112212200} is an apocalyptic number.

20112112212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112112212200 is an abundant number, since it is smaller than the sum of its proper divisors (28681620905080).

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

20112112212200 is a wasteful number, since it uses less digits than its factorization.

20112112212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4372198346 (or 4372198337 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20112112212200 its reverse (221221121102), we get a palindrome (20333333333302).

The spelling of 20112112212200 in words is "twenty trillion, one hundred twelve billion, one hundred twelve million, two hundred twelve thousand, two hundred".