12452225421 has 32 divisors (see below), whose sum is σ = 17653888000. Its totient is φ = 7793418240.

The previous prime is 12452225411. The next prime is 12452225431.

12452225421 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (12452225411) and next prime (12452225431).

It is not a de Polignac number, because 12452225421 - 2⁵ = 12452225389 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 (12452225411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1195725 + ... + 1206093.

It is an arithmetic number, because the mean of its divisors is an integer number (551684000).

Almost surely, 2^12452225421 is an apocalyptic number.

It is an amenable number.

12452225421 is a deficient number, since it is larger than the sum of its proper divisors (5201662579).

12452225421 is a wasteful number, since it uses less digits than its factorization.

12452225421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10789.

The product of its digits is 12800, while the sum is 30.

The spelling of 12452225421 in words is "twelve billion, four hundred fifty-two million, two hundred twenty-five thousand, four hundred twenty-one".