21211110012202 has 16 divisors (see below), whose sum is σ = 34754939982432. Its totient is φ = 9628677288720.

The previous prime is 21211110012181. The next prime is 21211110012217. The reversal of 21211110012202 is 20221001111212.

It is a super-2 number, since 2×21211110012202² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636800628 + ... + 636833935.

It is an arithmetic number, because the mean of its divisors is an integer number (2172183748902).

Almost surely, 2^{21211110012202} is an apocalyptic number.

21211110012202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21211110012202 is a deficient number, since it is larger than the sum of its proper divisors (13543829970230).

21211110012202 is a wasteful number, since it uses less digits than its factorization.

21211110012202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273635333.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21211110012202 its reverse (20221001111212), we get a palindrome (41432111123414).

The spelling of 21211110012202 in words is "twenty-one trillion, two hundred eleven billion, one hundred ten million, twelve thousand, two hundred two".