21020202002202 has 32 divisors (see below), whose sum is σ = 45283386089088. Its totient is φ = 6466453768896.

The previous prime is 21020202002141. The next prime is 21020202002269. The reversal of 21020202002202 is 20220020202012.

It is a super-2 number, since 2×21020202002202² (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 15 ways as a sum of consecutive naturals, for example, 26707398 + ... + 27483185.

It is an arithmetic number, because the mean of its divisors is an integer number (1415105815284).

Almost surely, 2^{21020202002202} is an apocalyptic number.

21020202002202 is an abundant number, since it is smaller than the sum of its proper divisors (24263184086886).

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

21020202002202 is a wasteful number, since it uses less digits than its factorization.

21020202002202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54195574.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 21020202002202 its reverse (20220020202012), we get a palindrome (41240222204214).

The spelling of 21020202002202 in words is "twenty-one trillion, twenty billion, two hundred two million, two thousand, two hundred two".