22020231 has 8 divisors (see below), whose sum is σ = 29762800. Its totient is φ = 14478912.

The previous prime is 22020227. The next prime is 22020277. The reversal of 22020231 is 13202022.

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

It is not a de Polignac number, because 22020231 - 2² = 22020227 is a prime.

It is a super-2 number, since 2×22020231² = 969781146586722, 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 (22020211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50056 + ... + 50493.

It is an arithmetic number, because the mean of its divisors is an integer number (3720350).

Almost surely, 2^22020231 is an apocalyptic number.

22020231 is a deficient number, since it is larger than the sum of its proper divisors (7742569).

22020231 is a wasteful number, since it uses less digits than its factorization.

22020231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100625.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 22020231 is about 4692.5718960928. The cubic root of 22020231 is about 280.2897977473.

Adding to 22020231 its reverse (13202022), we get a palindrome (35222253).

The spelling of 22020231 in words is "twenty-two million, twenty thousand, two hundred thirty-one".