21112000100202 has 64 divisors (see below), whose sum is σ = 46323395596800. Its totient is φ = 6361352066880.

The previous prime is 21112000100201. The next prime is 21112000100227. The reversal of 21112000100202 is 20200100021112.

It is not an unprimeable number, because it can be changed into a prime (21112000100201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174538648 + ... + 174659564.

It is an arithmetic number, because the mean of its divisors is an integer number (723803056200).

Almost surely, 2^{21112000100202} is an apocalyptic number.

21112000100202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21112000100202 is an abundant number, since it is smaller than the sum of its proper divisors (25211395496598).

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

21112000100202 is a wasteful number, since it uses less digits than its factorization.

21112000100202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135891.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21112000100202 its reverse (20200100021112), we get a palindrome (41312100121314).

The spelling of 21112000100202 in words is "twenty-one trillion, one hundred twelve billion, one hundred thousand, two hundred two".