21020001002202 has 16 divisors (see below), whose sum is σ = 42042409038432. Its totient is φ = 7006265828400.

The previous prime is 21020001002159. The next prime is 21020001002233. The reversal of 21020001002202 is 20220010002012.

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, 100179549 + ... + 100389152.

It is an arithmetic number, because the mean of its divisors is an integer number (2627650564902).

Almost surely, 2^{21020001002202} is an apocalyptic number.

21020001002202 is an abundant number, since it is smaller than the sum of its proper divisors (21022408036230).

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

21020001002202 is a wasteful number, since it uses less digits than its factorization.

21020001002202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200586173.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 21020001002202 its reverse (20220010002012), we get a palindrome (41240011004214).

The spelling of 21020001002202 in words is "twenty-one trillion, twenty billion, one million, two thousand, two hundred two".