425221002310121 has 24 divisors (see below), whose sum is σ = 434440201383552. Its totient is φ = 416179045245600.

The previous prime is 425221002310109. The next prime is 425221002310151. The reversal of 425221002310121 is 121013200122524.

It is not a de Polignac number, because 425221002310121 - 2¹⁸ = 425221002047977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425221002310151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 863211536 + ... + 863703998.

It is an arithmetic number, because the mean of its divisors is an integer number (18101675057648).

Almost surely, 2^{425221002310121} is an apocalyptic number.

It is an amenable number.

425221002310121 is a deficient number, since it is larger than the sum of its proper divisors (9219199073431).

425221002310121 is a wasteful number, since it uses less digits than its factorization.

425221002310121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493853 (or 493782 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 425221002310121 its reverse (121013200122524), we get a palindrome (546234202432645).

The spelling of 425221002310121 in words is "four hundred twenty-five trillion, two hundred twenty-one billion, two million, three hundred ten thousand, one hundred twenty-one".