22420239956 has 12 divisors (see below), whose sum is σ = 39237268980. Its totient is φ = 11209591680.

The previous prime is 22420239911. The next prime is 22420239977. The reversal of 22420239956 is 65993202422.

It can be written as a sum of positive squares in 2 ways, for example, as 10334755600 + 12085484356 = 101660^2 + 109934^2 .

It is a congruent number.

It is an unprimeable number.

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, 27365 + ... + 213516.

It is an arithmetic number, because the mean of its divisors is an integer number (3269772415).

Almost surely, 2^22420239956 is an apocalyptic number.

It is an amenable number.

22420239956 is a deficient number, since it is larger than the sum of its proper divisors (16817029024).

22420239956 is a wasteful number, since it uses less digits than its factorization.

22420239956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264154 (or 264152 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 22420239956 in words is "twenty-two billion, four hundred twenty million, two hundred thirty-nine thousand, nine hundred fifty-six".