1312221102 has 16 divisors (see below), whose sum is σ = 2625592320. Its totient is φ = 437215352.

The previous prime is 1312221083. The next prime is 1312221151. The reversal of 1312221102 is 2011222131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32718 + ... + 60785.

It is an arithmetic number, because the mean of its divisors is an integer number (164099520).

Almost surely, 2^1312221102 is an apocalyptic number.

1312221102 is an abundant number, since it is smaller than the sum of its proper divisors (1313371218).

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

1312221102 is a wasteful number, since it uses less digits than its factorization.

1312221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95847.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1312221102 is about 36224.5925028840. The cubic root of 1312221102 is about 1094.8022277875.

Adding to 1312221102 its reverse (2011222131), we get a palindrome (3323443233).

The spelling of 1312221102 in words is "one billion, three hundred twelve million, two hundred twenty-one thousand, one hundred two".