22233121320221 has 4 divisors (see below), whose sum is σ = 25409281508832. Its totient is φ = 19056961131612.

The previous prime is 22233121320217. The next prime is 22233121320281. The reversal of 22233121320221 is 12202312133222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22233121320221 - 2² = 22233121320217 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 (22233121320281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1588080094295 + ... + 1588080094308.

It is an arithmetic number, because the mean of its divisors is an integer number (6352320377208).

Almost surely, 2^{22233121320221} is an apocalyptic number.

It is an amenable number.

22233121320221 is a deficient number, since it is larger than the sum of its proper divisors (3176160188611).

22233121320221 is an equidigital number, since it uses as much as digits as its factorization.

22233121320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176160188610.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 22233121320221 its reverse (12202312133222), we get a palindrome (34435433453443).

The spelling of 22233121320221 in words is "twenty-two trillion, two hundred thirty-three billion, one hundred twenty-one million, three hundred twenty thousand, two hundred twenty-one".