1222131202 has 16 divisors (see below), whose sum is σ = 1843523640. Its totient is φ = 607632768.

The previous prime is 1222131199. The next prime is 1222131203. The reversal of 1222131202 is 2021312221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 491996761 + 730134441 = 22181^2 + 27021^2 .

It is not an unprimeable number, because it can be changed into a prime (1222131203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313288 + ... + 317164.

Almost surely, 2^1222131202 is an apocalyptic number.

1222131202 is a deficient number, since it is larger than the sum of its proper divisors (621392438).

1222131202 is a wasteful number, since it uses less digits than its factorization.

1222131202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4725.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1222131202 is about 34958.9931491169. The cubic root of 1222131202 is about 1069.1515683863.

Adding to 1222131202 its reverse (2021312221), we get a palindrome (3243443423).

The spelling of 1222131202 in words is "one billion, two hundred twenty-two million, one hundred thirty-one thousand, two hundred two".