22100057 has 4 divisors (see below), whose sum is σ = 25257216. Its totient is φ = 18942900.

The previous prime is 22100047. The next prime is 22100069. The reversal of 22100057 is 75000122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22100057 - 2⁴ = 22100041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22100047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1578569 + ... + 1578582.

It is an arithmetic number, because the mean of its divisors is an integer number (6314304).

Almost surely, 2^22100057 is an apocalyptic number.

It is an amenable number.

22100057 is a deficient number, since it is larger than the sum of its proper divisors (3157159).

22100057 is an equidigital number, since it uses as much as digits as its factorization.

22100057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3157158.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 22100057 is about 4701.0697718711. The cubic root of 22100057 is about 280.6280841026.

Adding to 22100057 its reverse (75000122), we get a palindrome (97100179).

The spelling of 22100057 in words is "twenty-two million, one hundred thousand, fifty-seven".