31222200231121 has 8 divisors (see below), whose sum is σ = 32250697855488. Its totient is φ = 30195035724000.

The previous prime is 31222200231073. The next prime is 31222200231137. The reversal of 31222200231121 is 12113200222213.

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

It is a cyclic number.

It is not a de Polignac number, because 31222200231121 - 2⁷ = 31222200230993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31222200231092 and 31222200231101.

It is not an unprimeable number, because it can be changed into a prime (31222200231151) 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, 333231700 + ... + 333325381.

It is an arithmetic number, because the mean of its divisors is an integer number (4031337231936).

Almost surely, 2^{31222200231121} is an apocalyptic number.

31222200231121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31222200231121 is a deficient number, since it is larger than the sum of its proper divisors (1028497624367).

31222200231121 is a wasteful number, since it uses less digits than its factorization.

31222200231121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666558623.

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

Adding to 31222200231121 its reverse (12113200222213), we get a palindrome (43335400453334).

The spelling of 31222200231121 in words is "thirty-one trillion, two hundred twenty-two billion, two hundred million, two hundred thirty-one thousand, one hundred twenty-one".