1312222223133 has 16 divisors (see below), whose sum is σ = 2011068542400. Its totient is φ = 844648786800.

The previous prime is 1312222223113. The next prime is 1312222223173. The reversal of 1312222223133 is 3313222222131.

1312222223133 is a `hidden beast` number, since 1 + 3 + 122 + 2 + 222 + 313 + 3 = 666.

It is not a de Polignac number, because 1312222223133 - 2⁵ = 1312222223101 is a prime.

It is a super-2 number, since 2×1312222223133² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1312222223097 and 1312222223106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312222223113) 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, 837944443 + ... + 837946008.

It is an arithmetic number, because the mean of its divisors is an integer number (125691783900).

Almost surely, 2^{1312222223133} is an apocalyptic number.

It is an amenable number.

1312222223133 is a deficient number, since it is larger than the sum of its proper divisors (698846319267).

1312222223133 is a wasteful number, since it uses less digits than its factorization.

1312222223133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675890489 (or 1675890483 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 1312222223133 its reverse (3313222222131), we get a palindrome (4625444445264).

The spelling of 1312222223133 in words is "one trillion, three hundred twelve billion, two hundred twenty-two million, two hundred twenty-three thousand, one hundred thirty-three".