31422012222 has 32 divisors (see below), whose sum is σ = 64399456800. Its totient is φ = 10214945280.

The previous prime is 31422012221. The next prime is 31422012229. The reversal of 31422012222 is 22221022413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422012221) 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, 729108 + ... + 771000.

It is an arithmetic number, because the mean of its divisors is an integer number (2012483025).

Almost surely, 2^31422012222 is an apocalyptic number.

31422012222 is an abundant number, since it is smaller than the sum of its proper divisors (32977444578).

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

31422012222 is a wasteful number, since it uses less digits than its factorization.

31422012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44988.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 31422012222 its reverse (22221022413), we get a palindrome (53643034635).

The spelling of 31422012222 in words is "thirty-one billion, four hundred twenty-two million, twelve thousand, two hundred twenty-two".