1312022221311 has 8 divisors (see below), whose sum is σ = 1758153731200. Its totient is φ = 870286096152.

The previous prime is 1312022221259. The next prime is 1312022221379. The reversal of 1312022221311 is 1131222202131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1312022221311 - 2²² = 1312018027007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312022226311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1098845485 + ... + 1098846678.

It is an arithmetic number, because the mean of its divisors is an integer number (219769216400).

Almost surely, 2^{1312022221311} is an apocalyptic number.

1312022221311 is a deficient number, since it is larger than the sum of its proper divisors (446131509889).

1312022221311 is a wasteful number, since it uses less digits than its factorization.

1312022221311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197692365.

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

Adding to 1312022221311 its reverse (1131222202131), we get a palindrome (2443244423442).

The spelling of 1312022221311 in words is "one trillion, three hundred twelve billion, twenty-two million, two hundred twenty-one thousand, three hundred eleven".