21120001111202 has 16 divisors (see below), whose sum is σ = 37088782440192. Its totient is φ = 8830662485280.

The previous prime is 21120001111109. The next prime is 21120001111229. The reversal of 21120001111202 is 20211110002112.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 18397212938 + ... + 18397214085.

It is an arithmetic number, because the mean of its divisors is an integer number (2318048902512).

Almost surely, 2^{21120001111202} is an apocalyptic number.

21120001111202 is a deficient number, since it is larger than the sum of its proper divisors (15968781328990).

21120001111202 is a wasteful number, since it uses less digits than its factorization.

21120001111202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36794427073.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21120001111202 its reverse (20211110002112), we get a palindrome (41331111113314).

The spelling of 21120001111202 in words is "twenty-one trillion, one hundred twenty billion, one million, one hundred eleven thousand, two hundred two".