225400412113421 has 4 divisors (see below), whose sum is σ = 225402052922592. Its totient is φ = 225398771304252.

The previous prime is 225400412113417. The next prime is 225400412113529. The reversal of 225400412113421 is 124311214004522.

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 225400412113421 - 2² = 225400412113417 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 (225402412113421) 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, 820198511 + ... + 820473276.

It is an arithmetic number, because the mean of its divisors is an integer number (56350513230648).

Almost surely, 2^{225400412113421} is an apocalyptic number.

It is an amenable number.

225400412113421 is a deficient number, since it is larger than the sum of its proper divisors (1640809171).

225400412113421 is a wasteful number, since it uses less digits than its factorization.

225400412113421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640809170.

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 225400412113421 its reverse (124311214004522), we get a palindrome (349711626117943).

The spelling of 225400412113421 in words is "two hundred twenty-five trillion, four hundred billion, four hundred twelve million, one hundred thirteen thousand, four hundred twenty-one".