2031520323222 has 24 divisors (see below), whose sum is σ = 4740214088064. Its totient is φ = 625083176304.

The previous prime is 2031520323221. The next prime is 2031520323241. The reversal of 2031520323222 is 2223230251302.

2031520323222 is a `hidden beast` number, since 2 + 0 + 315 + 2 + 0 + 323 + 2 + 22 = 666.

It is a super-2 number, since 2×2031520323222² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031520323221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4340855158 + ... + 4340855625.

It is an arithmetic number, because the mean of its divisors is an integer number (197508920336).

Almost surely, 2^{2031520323222} is an apocalyptic number.

2031520323222 is an abundant number, since it is smaller than the sum of its proper divisors (2708693764842).

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

2031520323222 is a wasteful number, since it uses less digits than its factorization.

2031520323222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8681710804 (or 8681710801 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 2031520323222 its reverse (2223230251302), we get a palindrome (4254750574524).

The spelling of 2031520323222 in words is "two trillion, thirty-one billion, five hundred twenty million, three hundred twenty-three thousand, two hundred twenty-two".