31023112021222 has 32 divisors (see below), whose sum is σ = 49490180006400. Its totient is φ = 14543270800128.

The previous prime is 31023112021193. The next prime is 31023112021229. The reversal of 31023112021222 is 22212021132013.

It is a junction number, because it is equal to n+sod(n) for n = 31023112021193 and 31023112021202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023112021229) 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, 172853743 + ... + 173033125.

It is an arithmetic number, because the mean of its divisors is an integer number (1546568125200).

Almost surely, 2^{31023112021222} is an apocalyptic number.

31023112021222 is a deficient number, since it is larger than the sum of its proper divisors (18467067985178).

31023112021222 is a wasteful number, since it uses less digits than its factorization.

31023112021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226420.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 31023112021222 its reverse (22212021132013), we get a palindrome (53235133153235).

The spelling of 31023112021222 in words is "thirty-one trillion, twenty-three billion, one hundred twelve million, twenty-one thousand, two hundred twenty-two".