21202101101104 has 80 divisors (see below), whose sum is σ = 54228139462656. Its totient is φ = 7774643635200.

The previous prime is 21202101101063. The next prime is 21202101101171. The reversal of 21202101101104 is 40110110120212.

It is a super-2 number, since 2×21202101101104² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 506140752 + ... + 506182639.

Almost surely, 2^{21202101101104} is an apocalyptic number.

It is an amenable number.

21202101101104 is an abundant number, since it is smaller than the sum of its proper divisors (33026038361552).

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

21202101101104 is a wasteful number, since it uses less digits than its factorization.

21202101101104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012323434 (or 1012323428 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21202101101104 its reverse (40110110120212), we get a palindrome (61312211221316).

The spelling of 21202101101104 in words is "twenty-one trillion, two hundred two billion, one hundred one million, one hundred one thousand, one hundred four".