21000202022102 has 16 divisors (see below), whose sum is σ = 31882176253872. Its totient is φ = 10372828600320.

The previous prime is 21000202022071. The next prime is 21000202022131. The reversal of 21000202022102 is 20122020200012.

It is a congruent number.

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, 2405099 + ... + 6912662.

It is an arithmetic number, because the mean of its divisors is an integer number (1992636015867).

Almost surely, 2^{21000202022102} is an apocalyptic number.

21000202022102 is a deficient number, since it is larger than the sum of its proper divisors (10881974231770).

21000202022102 is a wasteful number, since it uses less digits than its factorization.

21000202022102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9331423.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 21000202022102 its reverse (20122020200012), we get a palindrome (41122222222114).

The spelling of 21000202022102 in words is "twenty-one trillion, two hundred two million, twenty-two thousand, one hundred two".