72222610931 has 8 divisors (see below), whose sum is σ = 76570737600. Its totient is φ = 67929177960.

The previous prime is 72222610927. The next prime is 72222610951. The reversal of 72222610931 is 13901622227.

It is a happy number.

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 72222610931 - 2² = 72222610927 is a prime.

It is a super-2 number, since 2×72222610931² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72222610891 and 72222610900.

It is not an unprimeable number, because it can be changed into a prime (72222610951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13670705 + ... + 13675986.

It is an arithmetic number, because the mean of its divisors is an integer number (9571342200).

Almost surely, 2^72222610931 is an apocalyptic number.

72222610931 is a deficient number, since it is larger than the sum of its proper divisors (4348126669).

72222610931 is a wasteful number, since it uses less digits than its factorization.

72222610931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27346849.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 72222610931 in words is "seventy-two billion, two hundred twenty-two million, six hundred ten thousand, nine hundred thirty-one".