213122211113 has 8 divisors (see below), whose sum is σ = 249232619328. Its totient is φ = 178427897424.

The previous prime is 213122211103. The next prime is 213122211119. The reversal of 213122211113 is 311112221312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213122211113 - 2⁴ = 213122211097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213122211119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354023306 + ... + 354023907.

It is an arithmetic number, because the mean of its divisors is an integer number (31154077416).

Almost surely, 2^213122211113 is an apocalyptic number.

It is an amenable number.

213122211113 is a deficient number, since it is larger than the sum of its proper divisors (36110408215).

213122211113 is an equidigital number, since it uses as much as digits as its factorization.

213122211113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708047263.

The product of its digits is 144, while the sum is 20.

Adding to 213122211113 its reverse (311112221312), we get a palindrome (524234432425).

The spelling of 213122211113 in words is "two hundred thirteen billion, one hundred twenty-two million, two hundred eleven thousand, one hundred thirteen".