22031323303221 has 48 divisors (see below), whose sum is σ = 33621281261568. Its totient is φ = 13881156364800.

The previous prime is 22031323303139. The next prime is 22031323303229. The reversal of 22031323303221 is 12230332313022.

22031323303221 is a `hidden beast` number, since 2 + 2 + 0 + 3 + 1 + 3 + 2 + 330 + 322 + 1 = 666.

It is not a de Polignac number, because 22031323303221 - 2³⁸ = 21756445396277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22031323303229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4222845 + ... + 7867341.

It is an arithmetic number, because the mean of its divisors is an integer number (700443359616).

Almost surely, 2^{22031323303221} is an apocalyptic number.

It is an amenable number.

22031323303221 is a deficient number, since it is larger than the sum of its proper divisors (11589957958347).

22031323303221 is a wasteful number, since it uses less digits than its factorization.

22031323303221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3645042 (or 3645039 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 22031323303221 its reverse (12230332313022), we get a palindrome (34261655616243).

The spelling of 22031323303221 in words is "twenty-two trillion, thirty-one billion, three hundred twenty-three million, three hundred three thousand, two hundred twenty-one".