21011202012200 has 48 divisors (see below), whose sum is σ = 48863360878080. Its totient is φ = 8402361888960.

The previous prime is 21011202012179. The next prime is 21011202012209. The reversal of 21011202012200 is 221020211012.

It is not an unprimeable number, because it can be changed into a prime (21011202012209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12447842 + ... + 14034641.

It is an arithmetic number, because the mean of its divisors is an integer number (1017986684960).

Almost surely, 2^{21011202012200} is an apocalyptic number.

21011202012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21011202012200 is an abundant number, since it is smaller than the sum of its proper divisors (27852158865880).

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

21011202012200 is a wasteful number, since it uses less digits than its factorization.

21011202012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26486466 (or 26486457 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21011202012200 its reverse (221020211012), we get a palindrome (21232222223212).

The spelling of 21011202012200 in words is "twenty-one trillion, eleven billion, two hundred two million, twelve thousand, two hundred".