22112820391 has 8 divisors (see below), whose sum is σ = 22707607824. Its totient is φ = 21521693760.

The previous prime is 22112820371. The next prime is 22112820449. The reversal of 22112820391 is 19302821122.

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 22112820391 - 2⁷ = 22112820263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112820361) 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 7 ways as a sum of consecutive naturals, for example, 902956 + ... + 927121.

It is an arithmetic number, because the mean of its divisors is an integer number (2838450978).

Almost surely, 2^22112820391 is an apocalyptic number.

22112820391 is a deficient number, since it is larger than the sum of its proper divisors (594787433).

22112820391 is a wasteful number, since it uses less digits than its factorization.

22112820391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830401.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 22112820391 in words is "twenty-two billion, one hundred twelve million, eight hundred twenty thousand, three hundred ninety-one".