22331117 has 4 divisors (see below), whose sum is σ = 22341216. Its totient is φ = 22321020.

The previous prime is 22331053. The next prime is 22331159. The reversal of 22331117 is 71113322.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22331117 - 2⁶ = 22331053 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 (22331717) 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, 143 + ... + 6684.

It is an arithmetic number, because the mean of its divisors is an integer number (5585304).

Almost surely, 2^22331117 is an apocalyptic number.

It is an amenable number.

22331117 is a deficient number, since it is larger than the sum of its proper divisors (10099).

22331117 is an equidigital number, since it uses as much as digits as its factorization.

22331117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10098.

The product of its digits is 252, while the sum is 20.

The square root of 22331117 is about 4725.5811282846. The cubic root of 22331117 is about 281.6027007545.

Adding to 22331117 its reverse (71113322), we get a palindrome (93444439).

It can be divided in two parts, 2233 and 1117, that multiplied together give a triangular number (2494261 = T₂₂₃₃).

The spelling of 22331117 in words is "twenty-two million, three hundred thirty-one thousand, one hundred seventeen".