22404022101221 has 32 divisors (see below), whose sum is σ = 25835095152000. Its totient is φ = 19284800274432.

The previous prime is 22404022101193. The next prime is 22404022101229. The reversal of 22404022101221 is 12210122040422.

It is not a de Polignac number, because 22404022101221 - 2³⁰ = 22402948359397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22404022101229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68187110 + ... + 68514888.

It is an arithmetic number, because the mean of its divisors is an integer number (807346723500).

Almost surely, 2^{22404022101221} is an apocalyptic number.

It is an amenable number.

22404022101221 is a deficient number, since it is larger than the sum of its proper divisors (3431073050779).

22404022101221 is a wasteful number, since it uses less digits than its factorization.

22404022101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335141.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 22404022101221 its reverse (12210122040422), we get a palindrome (34614144141643).

The spelling of 22404022101221 in words is "twenty-two trillion, four hundred four billion, twenty-two million, one hundred one thousand, two hundred twenty-one".