244120213425 has 144 divisors (see below), whose sum is σ = 452978507520. Its totient is φ = 115891670400.

The previous prime is 244120213417. The next prime is 244120213609. The reversal of 244120213425 is 524312021442.

It is a happy number.

It is not a de Polignac number, because 244120213425 - 2³ = 244120213417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 244120213392 and 244120213401.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 108835354 + ... + 108837596.

It is an arithmetic number, because the mean of its divisors is an integer number (3145684080).

Almost surely, 2^244120213425 is an apocalyptic number.

244120213425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

244120213425 is a deficient number, since it is larger than the sum of its proper divisors (208858294095).

244120213425 is a wasteful number, since it uses less digits than its factorization.

244120213425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524 (or 2508 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 244120213425 its reverse (524312021442), we get a palindrome (768432234867).

The spelling of 244120213425 in words is "two hundred forty-four billion, one hundred twenty million, two hundred thirteen thousand, four hundred twenty-five".