22117755 has 16 divisors (see below), whose sum is σ = 38605824. Its totient is φ = 10723680.

The previous prime is 22117727. The next prime is 22117783. The reversal of 22117755 is 55771122.

It is an interprime number because it is at equal distance from previous prime (22117727) and next prime (22117783).

It is not a de Polignac number, because 22117755 - 2⁵ = 22117723 is a prime.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66859 + ... + 67188.

It is an arithmetic number, because the mean of its divisors is an integer number (2412864).

Almost surely, 2^22117755 is an apocalyptic number.

22117755 is a deficient number, since it is larger than the sum of its proper divisors (16488069).

22117755 is a wasteful number, since it uses less digits than its factorization.

22117755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134066.

The product of its digits is 4900, while the sum is 30.

The square root of 22117755 is about 4702.9517326887. The cubic root of 22117755 is about 280.7029742663.

Adding to 22117755 its reverse (55771122), we get a palindrome (77888877).

The spelling of 22117755 in words is "twenty-two million, one hundred seventeen thousand, seven hundred fifty-five".