21013222213113 has 48 divisors (see below), whose sum is σ = 32126032783296. Its totient is φ = 12169496401920.

The previous prime is 21013222213043. The next prime is 21013222213157. The reversal of 21013222213113 is 31131222231012.

It is not a de Polignac number, because 21013222213113 - 2⁹ = 21013222212601 is a prime.

It is a super-4 number, since 4×21013222213113⁴ (a number of 54 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (21013222213813) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105146781 + ... + 105346437.

It is an arithmetic number, because the mean of its divisors is an integer number (669292349652).

Almost surely, 2^{21013222213113} is an apocalyptic number.

It is an amenable number.

21013222213113 is a deficient number, since it is larger than the sum of its proper divisors (11112810570183).

21013222213113 is a wasteful number, since it uses less digits than its factorization.

21013222213113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211914 (or 211901 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 21013222213113 its reverse (31131222231012), we get a palindrome (52144444444125).

The spelling of 21013222213113 in words is "twenty-one trillion, thirteen billion, two hundred twenty-two million, two hundred thirteen thousand, one hundred thirteen".