5311221324012 has 18 divisors (see below), whose sum is σ = 13425587235788. Its totient is φ = 1770407107992.

The previous prime is 5311221324007. The next prime is 5311221324053. The reversal of 5311221324012 is 2104231221135.

It is a happy number.

5311221324012 is a `hidden beast` number, since 5 + 3 + 1 + 1 + 221 + 32 + 401 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×5311221324012² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73766962798 + ... + 73766962869.

Almost surely, 2^{5311221324012} is an apocalyptic number.

It is an amenable number.

5311221324012 is an abundant number, since it is smaller than the sum of its proper divisors (8114365911776).

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

5311221324012 is a wasteful number, since it uses less digits than its factorization.

5311221324012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147533925677 (or 147533925672 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 5311221324012 its reverse (2104231221135), we get a palindrome (7415452545147).

The spelling of 5311221324012 in words is "five trillion, three hundred eleven billion, two hundred twenty-one million, three hundred twenty-four thousand, twelve".