1312120222210 has 32 divisors (see below), whose sum is σ = 2737235918592. Its totient is φ = 443533594560.

The previous prime is 1312120222181. The next prime is 1312120222213. The reversal of 1312120222210 is 122220212131.

It is not an unprimeable number, because it can be changed into a prime (1312120222213) 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, 131999077 + ... + 132009016.

It is an arithmetic number, because the mean of its divisors is an integer number (85538622456).

Almost surely, 2^{1312120222210} is an apocalyptic number.

1312120222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312120222210 is an abundant number, since it is smaller than the sum of its proper divisors (1425115696382).

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

1312120222210 is a wasteful number, since it uses less digits than its factorization.

1312120222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264008178.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1312120222210 its reverse (122220212131), we get a palindrome (1434340434341).

The spelling of 1312120222210 in words is "one trillion, three hundred twelve billion, one hundred twenty million, two hundred twenty-two thousand, two hundred ten".