20222331 has 8 divisors (see below), whose sum is σ = 27059520. Its totient is φ = 13433352.

The previous prime is 20222329. The next prime is 20222351. The reversal of 20222331 is 13322202.

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

It is not a de Polignac number, because 20222331 - 2¹ = 20222329 is a prime.

It is a super-2 number, since 2×20222331² = 817885342147122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20222331.

It is not an unprimeable number, because it can be changed into a prime (20222351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11061 + ... + 12758.

It is an arithmetic number, because the mean of its divisors is an integer number (3382440).

Almost surely, 2^20222331 is an apocalyptic number.

20222331 is a deficient number, since it is larger than the sum of its proper divisors (6837189).

20222331 is a wasteful number, since it uses less digits than its factorization.

20222331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24105.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20222331 is about 4496.9246157791. The cubic root of 20222331 is about 272.4438893532.

Adding to 20222331 its reverse (13322202), we get a palindrome (33544533).

The spelling of 20222331 in words is "twenty million, two hundred twenty-two thousand, three hundred thirty-one".