22223221331 has 4 divisors (see below), whose sum is σ = 22224475512. Its totient is φ = 22221967152.

The previous prime is 22223221271. The next prime is 22223221367. The reversal of 22223221331 is 13312232222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22223221331 - 2¹⁴ = 22223204947 is a prime.

It is a super-2 number, since 2×22223221331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22223221297 and 22223221306.

It is not an unprimeable number, because it can be changed into a prime (22223221931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600125 + ... + 636078.

It is an arithmetic number, because the mean of its divisors is an integer number (5556118878).

Almost surely, 2^22223221331 is an apocalyptic number.

22223221331 is a deficient number, since it is larger than the sum of its proper divisors (1254181).

22223221331 is a wasteful number, since it uses less digits than its factorization.

22223221331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254180.

The product of its digits is 1728, while the sum is 23.

Adding to 22223221331 its reverse (13312232222), we get a palindrome (35535453553).

The spelling of 22223221331 in words is "twenty-two billion, two hundred twenty-three million, two hundred twenty-one thousand, three hundred thirty-one".