1312221232110 has 16 divisors (see below), whose sum is σ = 3149330957136. Its totient is φ = 349925661888.

The previous prime is 1312221232103. The next prime is 1312221232123. The reversal of 1312221232110 is 112321222131.

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, 21870353839 + ... + 21870353898.

It is an arithmetic number, because the mean of its divisors is an integer number (196833184821).

Almost surely, 2^{1312221232110} is an apocalyptic number.

1312221232110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312221232110 is an abundant number, since it is smaller than the sum of its proper divisors (1837109725026).

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

1312221232110 is a wasteful number, since it uses less digits than its factorization.

1312221232110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43740707747.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1312221232110 its reverse (112321222131), we get a palindrome (1424542454241).

The spelling of 1312221232110 in words is "one trillion, three hundred twelve billion, two hundred twenty-one million, two hundred thirty-two thousand, one hundred ten".