5112221312021 has 16 divisors (see below), whose sum is σ = 5370581693568. Its totient is φ = 4856935089600.

The previous prime is 5112221311999. The next prime is 5112221312047. The reversal of 5112221312021 is 1202131222115.

It is a cyclic number.

It is not a de Polignac number, because 5112221312021 - 2²⁶ = 5112154203157 is a prime.

It is a super-2 number, since 2×5112221312021² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5112221318021) 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, 2619095 + ... + 4133291.

It is an arithmetic number, because the mean of its divisors is an integer number (335661355848).

Almost surely, 2^{5112221312021} is an apocalyptic number.

It is an amenable number.

5112221312021 is a deficient number, since it is larger than the sum of its proper divisors (258360381547).

5112221312021 is a wasteful number, since it uses less digits than its factorization.

5112221312021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515212.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 5112221312021 its reverse (1202131222115), we get a palindrome (6314352534136).

The spelling of 5112221312021 in words is "five trillion, one hundred twelve billion, two hundred twenty-one million, three hundred twelve thousand, twenty-one".