225401105245321 has 4 divisors (see below), whose sum is σ = 225422598638592. Its totient is φ = 225379611852052.

The previous prime is 225401105245307. The next prime is 225401105245343. The reversal of 225401105245321 is 123542501104522.

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 225401105245321 - 2¹³ = 225401105237129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225401105245301) 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 3 ways as a sum of consecutive naturals, for example, 10746680905 + ... + 10746701878.

It is an arithmetic number, because the mean of its divisors is an integer number (56355649659648).

Almost surely, 2^{225401105245321} is an apocalyptic number.

It is an amenable number.

225401105245321 is a deficient number, since it is larger than the sum of its proper divisors (21493393271).

225401105245321 is a wasteful number, since it uses less digits than its factorization.

225401105245321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21493393270.

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 225401105245321 its reverse (123542501104522), we get a palindrome (348943606349843).

The spelling of 225401105245321 in words is "two hundred twenty-five trillion, four hundred one billion, one hundred five million, two hundred forty-five thousand, three hundred twenty-one".