1312221222130 has 32 divisors (see below), whose sum is σ = 2907074709504. Its totient is φ = 415296386496.

The previous prime is 1312221222127. The next prime is 1312221222139. The reversal of 1312221222130 is 312221222131.

It is not an unprimeable number, because it can be changed into a prime (1312221222139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 720999762 + ... + 721001581.

It is an arithmetic number, because the mean of its divisors is an integer number (90846084672).

Almost surely, 2^{1312221222130} is an apocalyptic number.

1312221222130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312221222130 is an abundant number, since it is smaller than the sum of its proper divisors (1594853487374).

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

1312221222130 is a wasteful number, since it uses less digits than its factorization.

1312221222130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442001370.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1312221222130 its reverse (312221222131), we get a palindrome (1624442444261).

Subtracting from 1312221222130 its reverse (312221222131), we obtain a palindrome (999999999999).

It can be divided in two parts, 1312221 and 222130, that added together give a palindrome (1534351).

The spelling of 1312221222130 in words is "one trillion, three hundred twelve billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred thirty".