31022220022 has 8 divisors (see below), whose sum is σ = 46706317200. Its totient is φ = 15453447624.

The previous prime is 31022220017. The next prime is 31022220029. The reversal of 31022220022 is 22002222013.

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

It is a junction number, because it is equal to n+sod(n) for n = 31022219978 and 31022220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31022220029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28830522 + ... + 28831597.

It is an arithmetic number, because the mean of its divisors is an integer number (5838289650).

Almost surely, 2^31022220022 is an apocalyptic number.

31022220022 is a deficient number, since it is larger than the sum of its proper divisors (15684097178).

31022220022 is a wasteful number, since it uses less digits than its factorization.

31022220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57662390.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 31022220022 its reverse (22002222013), we get a palindrome (53024442035).

The spelling of 31022220022 in words is "thirty-one billion, twenty-two million, two hundred twenty thousand, twenty-two".