11222213122 has 4 divisors (see below), whose sum is σ = 16833319686. Its totient is φ = 5611106560.

The previous prime is 11222213099. The next prime is 11222213137. The reversal of 11222213122 is 22131222211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10053872361 + 1168340761 = 100269^2 + 34181^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11222213122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805553279 + ... + 2805553282.

Almost surely, 2^11222213122 is an apocalyptic number.

11222213122 is a deficient number, since it is larger than the sum of its proper divisors (5611106564).

11222213122 is an equidigital number, since it uses as much as digits as its factorization.

11222213122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611106563.

The product of its digits is 192, while the sum is 19.

Adding to 11222213122 its reverse (22131222211), we get a palindrome (33353435333).

The spelling of 11222213122 in words is "eleven billion, two hundred twenty-two million, two hundred thirteen thousand, one hundred twenty-two".