1312212012122 has 16 divisors (see below), whose sum is σ = 2147535052992. Its totient is φ = 596382496320.

The previous prime is 1312212012119. The next prime is 1312212012149. The reversal of 1312212012122 is 2212102122131.

It is a junction number, because it is equal to n+sod(n) for n = 1312212012094 and 1312212012103.

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, 3702143 + ... + 4041074.

It is an arithmetic number, because the mean of its divisors is an integer number (134220940812).

Almost surely, 2^{1312212012122} is an apocalyptic number.

1312212012122 is a deficient number, since it is larger than the sum of its proper divisors (835323040870).

1312212012122 is a wasteful number, since it uses less digits than its factorization.

1312212012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7750933.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1312212012122 its reverse (2212102122131), we get a palindrome (3524314134253).

The spelling of 1312212012122 in words is "one trillion, three hundred twelve billion, two hundred twelve million, twelve thousand, one hundred twenty-two".