22122055 has 4 divisors (see below), whose sum is σ = 26546472. Its totient is φ = 17697640.

The previous prime is 22122053. The next prime is 22122097. The reversal of 22122055 is 55022122.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22122055 - 2¹ = 22122053 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 (22122053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2212201 + ... + 2212210.

It is an arithmetic number, because the mean of its divisors is an integer number (6636618).

Almost surely, 2^22122055 is an apocalyptic number.

22122055 is a deficient number, since it is larger than the sum of its proper divisors (4424417).

22122055 is an equidigital number, since it uses as much as digits as its factorization.

22122055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4424416.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 22122055 is about 4703.4088701707. The cubic root of 22122055 is about 280.7211639451.

Adding to 22122055 its reverse (55022122), we get a palindrome (77144177).

The spelling of 22122055 in words is "twenty-two million, one hundred twenty-two thousand, fifty-five".