22133320631 has 4 divisors (see below), whose sum is σ = 22134538272. Its totient is φ = 22132102992.

The previous prime is 22133320613. The next prime is 22133320661. The reversal of 22133320631 is 13602333122.

It is a happy number.

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 22133320631 - 2¹⁸ = 22133058487 is a prime.

It is a super-2 number, since 2×22133320631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22133320631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22133320661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581135 + ... + 618048.

It is an arithmetic number, because the mean of its divisors is an integer number (5533634568).

Almost surely, 2^22133320631 is an apocalyptic number.

22133320631 is a deficient number, since it is larger than the sum of its proper divisors (1217641).

22133320631 is a wasteful number, since it uses less digits than its factorization.

22133320631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217640.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 22133320631 its reverse (13602333122), we get a palindrome (35735653753).

The spelling of 22133320631 in words is "twenty-two billion, one hundred thirty-three million, three hundred twenty thousand, six hundred thirty-one".