1220131302 has 32 divisors (see below), whose sum is σ = 2641766400. Its totient is φ = 373454880.

The previous prime is 1220131273. The next prime is 1220131357. The reversal of 1220131302 is 2031310221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26052 + ... + 55847.

It is an arithmetic number, because the mean of its divisors is an integer number (82555200).

Almost surely, 2^1220131302 is an apocalyptic number.

1220131302 is an abundant number, since it is smaller than the sum of its proper divisors (1421635098).

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

1220131302 is a wasteful number, since it uses less digits than its factorization.

1220131302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82108.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1220131302 is about 34930.3779252387. The cubic root of 1220131302 is about 1068.5680621318.

Adding to 1220131302 its reverse (2031310221), we get a palindrome (3251441523).

The spelling of 1220131302 in words is "one billion, two hundred twenty million, one hundred thirty-one thousand, three hundred two".