1312222242 has 16 divisors (see below), whose sum is σ = 2695375872. Its totient is φ = 425585520.

The previous prime is 1312222237. The next prime is 1312222259. The reversal of 1312222242 is 2422222131.

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, 2955234 + ... + 2955677.

It is an arithmetic number, because the mean of its divisors is an integer number (168460992).

Almost surely, 2^1312222242 is an apocalyptic number.

1312222242 is an abundant number, since it is smaller than the sum of its proper divisors (1383153630).

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

1312222242 is a wasteful number, since it uses less digits than its factorization.

1312222242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5910953.

The product of its digits is 768, while the sum is 21.

The square root of 1312222242 is about 36224.6082380472. The cubic root of 1312222242 is about 1094.8025448261.

Adding to 1312222242 its reverse (2422222131), we get a palindrome (3734444373).

The spelling of 1312222242 in words is "one billion, three hundred twelve million, two hundred twenty-two thousand, two hundred forty-two".