23221221002022 has 16 divisors (see below), whose sum is σ = 46571808142080. Its totient is φ = 7718845977672.

The previous prime is 23221221002003. The next prime is 23221221002033. The reversal of 23221221002022 is 22020012212232.

It is a self number, because there is not a number n which added to its sum of digits gives 23221221002022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5390253418 + ... + 5390257725.

It is an arithmetic number, because the mean of its divisors is an integer number (2910738008880).

Almost surely, 2^{23221221002022} is an apocalyptic number.

23221221002022 is an abundant number, since it is smaller than the sum of its proper divisors (23350587140058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23221221002022 is a wasteful number, since it uses less digits than its factorization.

23221221002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10780511507.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 23221221002022 its reverse (22020012212232), we get a palindrome (45241233214254).

The spelling of 23221221002022 in words is "twenty-three trillion, two hundred twenty-one billion, two hundred twenty-one million, two thousand, twenty-two".