21002022012202 has 512 divisors, whose sum is σ = 43090234951680. Its totient is φ = 7445053440000.

The previous prime is 21002022012187. The next prime is 21002022012241. The reversal of 21002022012202 is 20221022020012.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 153299430678 + ... + 153299430814.

It is an arithmetic number, because the mean of its divisors is an integer number (84160615140).

Almost surely, 2^{21002022012202} is an apocalyptic number.

21002022012202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21002022012202 is an abundant number, since it is smaller than the sum of its proper divisors (22088212939478).

21002022012202 is a wasteful number, since it uses less digits than its factorization.

21002022012202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 21002022012202 its reverse (20221022020012), we get a palindrome (41223044032214).

It can be divided in two parts, 210020 and 22012202, that added together give a palindrome (22222222).

The spelling of 21002022012202 in words is "twenty-one trillion, two billion, twenty-two million, twelve thousand, two hundred two".