22113331 has 4 divisors (see below), whose sum is σ = 22208472. Its totient is φ = 22018192.

The previous prime is 22113263. The next prime is 22113353. The reversal of 22113331 is 13331122.

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

It is a cyclic number.

It is not a de Polignac number, because 22113331 - 2¹⁵ = 22080563 is a prime.

It is a super-2 number, since 2×22113331² = 977998815831122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22110331) 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, 47221 + ... + 47686.

It is an arithmetic number, because the mean of its divisors is an integer number (5552118).

Almost surely, 2^22113331 is an apocalyptic number.

22113331 is a deficient number, since it is larger than the sum of its proper divisors (95141).

22113331 is an equidigital number, since it uses as much as digits as its factorization.

22113331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95140.

The product of its digits is 108, while the sum is 16.

The square root of 22113331 is about 4702.4813662576. The cubic root of 22113331 is about 280.6842575873.

Adding to 22113331 its reverse (13331122), we get a palindrome (35444453).

The spelling of 22113331 in words is "twenty-two million, one hundred thirteen thousand, three hundred thirty-one".