2031222012321 has 8 divisors (see below), whose sum is σ = 2711635472224. Its totient is φ = 1352478280320.

The previous prime is 2031222012301. The next prime is 2031222012367. The reversal of 2031222012321 is 1232102221302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2031222012321 - 2¹¹ = 2031222010273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2031222012301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417429136 + ... + 417434001.

It is an arithmetic number, because the mean of its divisors is an integer number (338954434028).

Almost surely, 2^{2031222012321} is an apocalyptic number.

It is an amenable number.

2031222012321 is a deficient number, since it is larger than the sum of its proper divisors (680413459903).

2031222012321 is an equidigital number, since it uses as much as digits as its factorization.

2031222012321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834863951.

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

Adding to 2031222012321 its reverse (1232102221302), we get a palindrome (3263324233623).

The spelling of 2031222012321 in words is "two trillion, thirty-one billion, two hundred twenty-two million, twelve thousand, three hundred twenty-one".