21002011202202 has 32 divisors (see below), whose sum is σ = 42434838547584. Its totient is φ = 6929202456000.

The previous prime is 21002011202201. The next prime is 21002011202239. The reversal of 21002011202202 is 20220211020012.

It is not an unprimeable number, because it can be changed into a prime (21002011202201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41592049 + ... + 42093972.

It is an arithmetic number, because the mean of its divisors is an integer number (1326088704612).

Almost surely, 2^{21002011202202} is an apocalyptic number.

21002011202202 is an abundant number, since it is smaller than the sum of its proper divisors (21432827345382).

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

21002011202202 is a wasteful number, since it uses less digits than its factorization.

21002011202202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83686454.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21002011202202 its reverse (20220211020012), we get a palindrome (41222222222214).

The spelling of 21002011202202 in words is "twenty-one trillion, two billion, eleven million, two hundred two thousand, two hundred two".