1222201122 has 16 divisors (see below), whose sum is σ = 2447573760. Its totient is φ = 406871792.

The previous prime is 1222201093. The next prime is 1222201157. The reversal of 1222201122 is 2211022221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127122 + ... + 136397.

It is an arithmetic number, because the mean of its divisors is an integer number (152973360).

Almost surely, 2^1222201122 is an apocalyptic number.

1222201122 is an abundant number, since it is smaller than the sum of its proper divisors (1225372638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222201122 is a wasteful number, since it uses less digits than its factorization.

1222201122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264297.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1222201122 is about 34959.9931636149. The cubic root of 1222201122 is about 1069.1719572644.

Adding to 1222201122 its reverse (2211022221), we get a palindrome (3433223343).

The spelling of 1222201122 in words is "one billion, two hundred twenty-two million, two hundred one thousand, one hundred twenty-two".