5112221311242 has 64 divisors (see below), whose sum is σ = 11529017660160. Its totient is φ = 1678962866112.

The previous prime is 5112221311199. The next prime is 5112221311261. The reversal of 5112221311242 is 2421131222115.

5112221311242 is a `hidden beast` number, since 511 + 2 + 2 + 2 + 131 + 12 + 4 + 2 = 666.

It is a super-2 number, since 2×5112221311242² (a number of 26 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1237113 + ... + 3428540.

It is an arithmetic number, because the mean of its divisors is an integer number (180140900940).

Almost surely, 2^{5112221311242} is an apocalyptic number.

5112221311242 is an abundant number, since it is smaller than the sum of its proper divisors (6416796348918).

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

5112221311242 is a wasteful number, since it uses less digits than its factorization.

5112221311242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4665964 (or 4665958 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

Adding to 5112221311242 its reverse (2421131222115), we get a palindrome (7533352533357).

The spelling of 5112221311242 in words is "five trillion, one hundred twelve billion, two hundred twenty-one million, three hundred eleven thousand, two hundred forty-two".