222521343125223 has 4 divisors (see below), whose sum is σ = 296695124166968. Its totient is φ = 148347562083480.

The previous prime is 222521343125203. The next prime is 222521343125251. The reversal of 222521343125223 is 322521343125222.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 222521343125223 - 2⁹ = 222521343124711 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 (222521343125203) 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, 37086890520868 + ... + 37086890520873.

It is an arithmetic number, because the mean of its divisors is an integer number (74173781041742).

Almost surely, 2^{222521343125223} is an apocalyptic number.

222521343125223 is a deficient number, since it is larger than the sum of its proper divisors (74173781041745).

222521343125223 is an equidigital number, since it uses as much as digits as its factorization.

222521343125223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74173781041744.

The product of its digits is 345600, while the sum is 39.

Subtracting 222521343125223 from its reverse (322521343125222), we obtain a palindrome (99999999999999).

The spelling of 222521343125223 in words is "two hundred twenty-two trillion, five hundred twenty-one billion, three hundred forty-three million, one hundred twenty-five thousand, two hundred twenty-three".