21020002111202 has 16 divisors (see below), whose sum is σ = 32299624288512. Its totient is φ = 10253470152480.

The previous prime is 21020002111183. The next prime is 21020002111247. The reversal of 21020002111202 is 20211120002012.

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, 2150603 + ... + 6831185.

It is an arithmetic number, because the mean of its divisors is an integer number (2018726518032).

Almost surely, 2^{21020002111202} is an apocalyptic number.

21020002111202 is a deficient number, since it is larger than the sum of its proper divisors (11279622177310).

21020002111202 is a wasteful number, since it uses less digits than its factorization.

21020002111202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4735393.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21020002111202 its reverse (20211120002012), we get a palindrome (41231122113214).

The spelling of 21020002111202 in words is "twenty-one trillion, twenty billion, two million, one hundred eleven thousand, two hundred two".