253221110223 has 4 divisors (see below), whose sum is σ = 337628146968. Its totient is φ = 168814073480.

The previous prime is 253221110171. The next prime is 253221110231. The reversal of 253221110223 is 322011122352.

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

It is a cyclic number.

It is not a de Polignac number, because 253221110223 - 2²⁴ = 253204333007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253221110193 and 253221110202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253221118223) 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, 42203518368 + ... + 42203518373.

It is an arithmetic number, because the mean of its divisors is an integer number (84407036742).

Almost surely, 2^253221110223 is an apocalyptic number.

253221110223 is a deficient number, since it is larger than the sum of its proper divisors (84407036745).

253221110223 is an equidigital number, since it uses as much as digits as its factorization.

253221110223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84407036744.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 253221110223 its reverse (322011122352), we get a palindrome (575232232575).

The spelling of 253221110223 in words is "two hundred fifty-three billion, two hundred twenty-one million, one hundred ten thousand, two hundred twenty-three".