1222211132 has 6 divisors (see below), whose sum is σ = 2138869488. Its totient is φ = 611105564.

The previous prime is 1222211129. The next prime is 1222211143. The reversal of 1222211132 is 2311122221.

It is a self number, because there is not a number n which added to its sum of digits gives 1222211132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152776388 + ... + 152776395.

It is an arithmetic number, because the mean of its divisors is an integer number (356478248).

Almost surely, 2^1222211132 is an apocalyptic number.

It is an amenable number.

1222211132 is a deficient number, since it is larger than the sum of its proper divisors (916658356).

1222211132 is a wasteful number, since it uses less digits than its factorization.

1222211132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305552787 (or 305552785 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 1222211132 is about 34960.1363269653. The cubic root of 1222211132 is about 1069.1748761462.

Adding to 1222211132 its reverse (2311122221), we get a palindrome (3533333353).

The spelling of 1222211132 in words is "one billion, two hundred twenty-two million, two hundred eleven thousand, one hundred thirty-two".