223642255121 has 8 divisors (see below), whose sum is σ = 223991092224. Its totient is φ = 223293573360.

The previous prime is 223642255063. The next prime is 223642255139. The reversal of 223642255121 is 121552246322.

It is a happy number.

223642255121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223642255121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223642255321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3030026 + ... + 3102956.

It is an arithmetic number, because the mean of its divisors is an integer number (27998886528).

Almost surely, 2^223642255121 is an apocalyptic number.

It is an amenable number.

223642255121 is a deficient number, since it is larger than the sum of its proper divisors (348837103).

223642255121 is an equidigital number, since it uses as much as digits as its factorization.

223642255121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77671.

The product of its digits is 57600, while the sum is 35.

The spelling of 223642255121 in words is "two hundred twenty-three billion, six hundred forty-two million, two hundred fifty-five thousand, one hundred twenty-one".