22556211197 has 8 divisors (see below), whose sum is σ = 24304272216. Its totient is φ = 20810002752.

The previous prime is 22556211169. The next prime is 22556211199. The reversal of 22556211197 is 79111265522.

It can be written as a sum of positive squares in 4 ways, for example, as 52911076 + 22503300121 = 7274^2 + 150011^2 .

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 22556211197 - 2³² = 18261243901 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 (22556211199) 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, 437798 + ... + 486599.

It is an arithmetic number, because the mean of its divisors is an integer number (3038034027).

Almost surely, 2^22556211197 is an apocalyptic number.

It is an amenable number.

22556211197 is a deficient number, since it is larger than the sum of its proper divisors (1748061019).

22556211197 is a wasteful number, since it uses less digits than its factorization.

22556211197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926287.

The product of its digits is 75600, while the sum is 41.

The spelling of 22556211197 in words is "twenty-two billion, five hundred fifty-six million, two hundred eleven thousand, one hundred ninety-seven".