22122331 has 16 divisors (see below), whose sum is σ = 28535040. Its totient is φ = 16642080.

The previous prime is 22122311. The next prime is 22122341. The reversal of 22122331 is 13322122.

22122331 = T₁₄₄₁ + T₁₄₄₂ + ... + T₁₄₆₁.

It is not a de Polignac number, because 22122331 - 2⁵ = 22122299 is a prime.

It is a super-2 number, since 2×22122331² = 978795057747122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22122311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2721 + ... + 7186.

It is an arithmetic number, because the mean of its divisors is an integer number (1783440).

Almost surely, 2^22122331 is an apocalyptic number.

22122331 is a deficient number, since it is larger than the sum of its proper divisors (6412709).

22122331 is a wasteful number, since it uses less digits than its factorization.

22122331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9954.

The product of its digits is 144, while the sum is 16.

The square root of 22122331 is about 4703.4382105009. The cubic root of 22122331 is about 280.7223313882.

Adding to 22122331 its reverse (13322122), we get a palindrome (35444453).

The spelling of 22122331 in words is "twenty-two million, one hundred twenty-two thousand, three hundred thirty-one".