245022410100421 has 4 divisors (see below), whose sum is σ = 245024486873100. Its totient is φ = 245020333327744.

The previous prime is 245022410100397. The next prime is 245022410100439. The reversal of 245022410100421 is 124001014220542.

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

It can be written as a sum of positive squares in 2 ways, for example, as 173120727276225 + 71901682824196 = 13157535^2 + 8479486^2 .

It is a cyclic number.

It is not a de Polignac number, because 245022410100421 - 2⁵ = 245022410100389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245022410100421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245022410101421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1038209356 + ... + 1038445333.

It is an arithmetic number, because the mean of its divisors is an integer number (61256121718275).

Almost surely, 2^{245022410100421} is an apocalyptic number.

It is an amenable number.

245022410100421 is a deficient number, since it is larger than the sum of its proper divisors (2076772679).

245022410100421 is a wasteful number, since it uses less digits than its factorization.

245022410100421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076772678.

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 245022410100421 its reverse (124001014220542), we get a palindrome (369023424320963).

The spelling of 245022410100421 in words is "two hundred forty-five trillion, twenty-two billion, four hundred ten million, one hundred thousand, four hundred twenty-one".