3121200222231 has 48 divisors (see below), whose sum is σ = 5354337063264. Its totient is φ = 1601851458816.

The previous prime is 3121200222229. The next prime is 3121200222251. The reversal of 3121200222231 is 1322220021213.

3121200222231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3121200222231 - 2¹ = 3121200222229 is a prime.

It is a super-2 number, since 2×3121200222231² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 3121200222198 and 3121200222207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121200222251) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22000660 + ... + 22142073.

It is an arithmetic number, because the mean of its divisors is an integer number (111548688818).

Almost surely, 2^{3121200222231} is an apocalyptic number.

3121200222231 is a deficient number, since it is larger than the sum of its proper divisors (2233136841033).

3121200222231 is a wasteful number, since it uses less digits than its factorization.

3121200222231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44142800 (or 44142793 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 3121200222231 its reverse (1322220021213), we get a palindrome (4443420243444).

The spelling of 3121200222231 in words is "three trillion, one hundred twenty-one billion, two hundred million, two hundred twenty-two thousand, two hundred thirty-one".