22232100212321 has 16 divisors (see below), whose sum is σ = 22779808816128. Its totient is φ = 21692232086400.

The previous prime is 22232100212269. The next prime is 22232100212327. The reversal of 22232100212321 is 12321200123222.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22232100212321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22232100212327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1881011 + ... + 6928376.

It is an arithmetic number, because the mean of its divisors is an integer number (1423738051008).

Almost surely, 2^{22232100212321} is an apocalyptic number.

It is an amenable number.

22232100212321 is a deficient number, since it is larger than the sum of its proper divisors (547708603807).

22232100212321 is a wasteful number, since it uses less digits than its factorization.

22232100212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8809832.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 22232100212321 its reverse (12321200123222), we get a palindrome (34553300335543).

The spelling of 22232100212321 in words is "twenty-two trillion, two hundred thirty-two billion, one hundred million, two hundred twelve thousand, three hundred twenty-one".