122222222222213 has 4 divisors (see below), whose sum is σ = 122225061275328. Its totient is φ = 122219383169100.

The previous prime is 122222222222173. The next prime is 122222222222227. The reversal of 122222222222213 is 312222222222221.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122222222222213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222222222273) 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, 1419461981 + ... + 1419548082.

It is an arithmetic number, because the mean of its divisors is an integer number (30556265318832).

Almost surely, 2^{122222222222213} is an apocalyptic number.

It is an amenable number.

122222222222213 is a deficient number, since it is larger than the sum of its proper divisors (2839053115).

122222222222213 is an equidigital number, since it uses as much as digits as its factorization.

122222222222213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2839053114.

The product of its digits is 12288, while the sum is 29.

Adding to 122222222222213 its reverse (312222222222221), we get a palindrome (434444444444434).

It can be divided in two parts, 12222222222221 and 3, that multiplied together give a palindrome (36666666666663).

The spelling of 122222222222213 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred thirteen".