31222134201 has 8 divisors (see below), whose sum is σ = 42250848544. Its totient is φ = 20504088000.

The previous prime is 31222134173. The next prime is 31222134211. The reversal of 31222134201 is 10243122213.

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

It is not a de Polignac number, because 31222134201 - 2⁶ = 31222134137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31222134211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77666800 + ... + 77667201.

It is an arithmetic number, because the mean of its divisors is an integer number (5281356068).

Almost surely, 2^31222134201 is an apocalyptic number.

It is an amenable number.

31222134201 is a deficient number, since it is larger than the sum of its proper divisors (11028714343).

31222134201 is a wasteful number, since it uses less digits than its factorization.

31222134201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155334071.

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

Adding to 31222134201 its reverse (10243122213), we get a palindrome (41465256414).

The spelling of 31222134201 in words is "thirty-one billion, two hundred twenty-two million, one hundred thirty-four thousand, two hundred one".