22272031 has 8 divisors (see below), whose sum is σ = 23177664. Its totient is φ = 21384480.

The previous prime is 22272017. The next prime is 22272037. The reversal of 22272031 is 13027222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22272031 - 2⁷ = 22271903 is a prime.

It is a super-2 number, since 2×22272031² = 992086729729922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22272037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1980 + ... + 6961.

It is an arithmetic number, because the mean of its divisors is an integer number (2897208).

Almost surely, 2^22272031 is an apocalyptic number.

22272031 is a deficient number, since it is larger than the sum of its proper divisors (905633).

22272031 is an equidigital number, since it uses as much as digits as its factorization.

22272031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9041.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 22272031 is about 4719.3252695698. The cubic root of 22272031 is about 281.3541167770.

Adding to 22272031 its reverse (13027222), we get a palindrome (35299253).

The spelling of 22272031 in words is "twenty-two million, two hundred seventy-two thousand, thirty-one".