122211222213 has 4 divisors (see below), whose sum is σ = 162948296288. Its totient is φ = 81474148140.

The previous prime is 122211222169. The next prime is 122211222239. The reversal of 122211222213 is 312222112221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 122211222213 - 2¹² = 122211218117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122211222213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122211222713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20368537033 + ... + 20368537038.

It is an arithmetic number, because the mean of its divisors is an integer number (40737074072).

Almost surely, 2^122211222213 is an apocalyptic number.

It is an amenable number.

122211222213 is a deficient number, since it is larger than the sum of its proper divisors (40737074075).

122211222213 is an equidigital number, since it uses as much as digits as its factorization.

122211222213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40737074074.

The product of its digits is 384, while the sum is 21.

Adding to 122211222213 its reverse (312222112221), we get a palindrome (434433334434).

The spelling of 122211222213 in words is "one hundred twenty-two billion, two hundred eleven million, two hundred twenty-two thousand, two hundred thirteen".