1331313222 has 16 divisors (see below), whose sum is σ = 2664161280. Its totient is φ = 443515272.

The previous prime is 1331313167. The next prime is 1331313233. The reversal of 1331313222 is 2223131331.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 52518 + ... + 73625.

It is an arithmetic number, because the mean of its divisors is an integer number (166510080).

Almost surely, 2^1331313222 is an apocalyptic number.

1331313222 is an abundant number, since it is smaller than the sum of its proper divisors (1332848058).

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

1331313222 is a wasteful number, since it uses less digits than its factorization.

1331313222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127907.

The product of its digits is 648, while the sum is 21.

The square root of 1331313222 is about 36487.1651680423. The cubic root of 1331313222 is about 1100.0862802846.

Adding to 1331313222 its reverse (2223131331), we get a palindrome (3554444553).

The spelling of 1331313222 in words is "one billion, three hundred thirty-one million, three hundred thirteen thousand, two hundred twenty-two".