12421451022 has 16 divisors (see below), whose sum is σ = 25420644480. Its totient is φ = 4044193272.

The previous prime is 12421451017. The next prime is 12421451033. The reversal of 12421451022 is 22015412421.

It is a junction number, because it is equal to n+sod(n) for n = 12421450983 and 12421451001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24072322 + ... + 24072837.

It is an arithmetic number, because the mean of its divisors is an integer number (1588790280).

Almost surely, 2^12421451022 is an apocalyptic number.

12421451022 is an abundant number, since it is smaller than the sum of its proper divisors (12999193458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12421451022 is a wasteful number, since it uses less digits than its factorization.

12421451022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48145207.

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 12421451022 its reverse (22015412421), we get a palindrome (34436863443).

The spelling of 12421451022 in words is "twelve billion, four hundred twenty-one million, four hundred fifty-one thousand, twenty-two".