22031022021 has 8 divisors (see below), whose sum is σ = 29375775744. Its totient is φ = 14686808160.

The previous prime is 22031021993. The next prime is 22031022037. The reversal of 22031022021 is 12022013022.

It is a happy number.

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

It is not a de Polignac number, because 22031022021 - 2¹⁴ = 22031005637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22031022521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27525 + ... + 211706.

It is an arithmetic number, because the mean of its divisors is an integer number (3671971968).

Almost surely, 2^22031022021 is an apocalyptic number.

It is an amenable number.

22031022021 is a deficient number, since it is larger than the sum of its proper divisors (7344753723).

22031022021 is a wasteful number, since it uses less digits than its factorization.

22031022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269931.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 22031022021 its reverse (12022013022), we get a palindrome (34053035043).

The spelling of 22031022021 in words is "twenty-two billion, thirty-one million, twenty-two thousand, twenty-one".