22244120397 has 8 divisors (see below), whose sum is σ = 32954252480. Its totient is φ = 14829413580.

The previous prime is 22244120389. The next prime is 22244120411. The reversal of 22244120397 is 79302144222.

It is a happy number.

22244120397 is a `hidden beast` number, since 2 + 2 + 2 + 441 + 203 + 9 + 7 = 666.

It is not a de Polignac number, because 22244120397 - 2³ = 22244120389 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 (22244120597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411928129 + ... + 411928182.

It is an arithmetic number, because the mean of its divisors is an integer number (4119281560).

Almost surely, 2^22244120397 is an apocalyptic number.

22244120397 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

22244120397 is a deficient number, since it is larger than the sum of its proper divisors (10710132083).

22244120397 is an equidigital number, since it uses as much as digits as its factorization.

22244120397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823856320 (or 823856314 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 22244120397 in words is "twenty-two billion, two hundred forty-four million, one hundred twenty thousand, three hundred ninety-seven".