20112212312200 has 24 divisors (see below), whose sum is σ = 46760893626330. Its totient is φ = 8044884924800.

The previous prime is 20112212312167. The next prime is 20112212312201. The reversal of 20112212312200 is 221321221102.

It can be written as a sum of positive squares in 3 ways, for example, as 19623854533924 + 488357778276 = 4429882^2 + 698826^2 .

It is not an unprimeable number, because it can be changed into a prime (20112212312201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50280530581 + ... + 50280530980.

Almost surely, 2^{20112212312200} is an apocalyptic number.

20112212312200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112212312200 is an abundant number, since it is smaller than the sum of its proper divisors (26648681314130).

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

20112212312200 is a wasteful number, since it uses less digits than its factorization.

20112212312200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100561061577 (or 100561061568 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20112212312200 its reverse (221321221102), we get a palindrome (20333533533302).

The spelling of 20112212312200 in words is "twenty trillion, one hundred twelve billion, two hundred twelve million, three hundred twelve thousand, two hundred".