23221322041221 has 12 divisors (see below), whose sum is σ = 33541966037580. Its totient is φ = 15480855319680.

The previous prime is 23221322041219. The next prime is 23221322041231. The reversal of 23221322041221 is 12214022312232.

23221322041221 is a `hidden beast` number, since 2 + 3 + 2 + 2 + 1 + 3 + 220 + 412 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22353842160225 + 867479880996 = 4727985^2 + 931386^2 .

It is not a de Polignac number, because 23221322041221 - 2¹ = 23221322041219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221322041231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4583731 + ... + 8212991.

It is an arithmetic number, because the mean of its divisors is an integer number (2795163836465).

Almost surely, 2^{23221322041221} is an apocalyptic number.

It is an amenable number.

23221322041221 is a deficient number, since it is larger than the sum of its proper divisors (10320643996359).

23221322041221 is a wasteful number, since it uses less digits than its factorization.

23221322041221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340196 (or 4340193 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 23221322041221 its reverse (12214022312232), we get a palindrome (35435344353453).

The spelling of 23221322041221 in words is "twenty-three trillion, two hundred twenty-one billion, three hundred twenty-two million, forty-one thousand, two hundred twenty-one".