22293331 has 4 divisors (see below), whose sum is σ = 22426992. Its totient is φ = 22159672.

The previous prime is 22293319. The next prime is 22293353. The reversal of 22293331 is 13339222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22293331 is a prime.

It is a super-2 number, since 2×22293331² = 993985214151122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22293296 and 22293305.

It is not an unprimeable number, because it can be changed into a prime (22293301) 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, 66580 + ... + 66913.

It is an arithmetic number, because the mean of its divisors is an integer number (5606748).

Almost surely, 2^22293331 is an apocalyptic number.

22293331 is a deficient number, since it is larger than the sum of its proper divisors (133661).

22293331 is a wasteful number, since it uses less digits than its factorization.

22293331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133660.

The product of its digits is 1944, while the sum is 25.

The square root of 22293331 is about 4721.5814088079. The cubic root of 22293331 is about 281.4437798058.

The spelling of 22293331 in words is "twenty-two million, two hundred ninety-three thousand, three hundred thirty-one".