22222421303331 has 16 divisors (see below), whose sum is σ = 30354804133920. Its totient is φ = 14452546068480.

The previous prime is 22222421303321. The next prime is 22222421303339. The reversal of 22222421303331 is 13330312422222.

It is not a de Polignac number, because 22222421303331 - 2¹⁸ = 22222421041187 is a prime.

It is a super-2 number, since 2×22222421303331² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22222421303339) 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, 4949346 + ... + 8303063.

It is an arithmetic number, because the mean of its divisors is an integer number (1897175258370).

Almost surely, 2^{22222421303331} is an apocalyptic number.

22222421303331 is a deficient number, since it is larger than the sum of its proper divisors (8132382830589).

22222421303331 is a wasteful number, since it uses less digits than its factorization.

22222421303331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13266086.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 22222421303331 its reverse (13330312422222), we get a palindrome (35552733725553).

The spelling of 22222421303331 in words is "twenty-two trillion, two hundred twenty-two billion, four hundred twenty-one million, three hundred three thousand, three hundred thirty-one".