12625421022 has 16 divisors (see below), whose sum is σ = 28056491280. Its totient is φ = 4208473656.

The previous prime is 12625420993. The next prime is 12625421051. The reversal of 12625421022 is 22012452621.

12625421022 is a `hidden beast` number, since 1 + 2 + 625 + 4 + 2 + 10 + 22 = 666.

12625421022 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12625420993) and next prime (12625421051).

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 116901993 + ... + 116902100.

It is an arithmetic number, because the mean of its divisors is an integer number (1753530705).

Almost surely, 2^12625421022 is an apocalyptic number.

12625421022 is an abundant number, since it is smaller than the sum of its proper divisors (15431070258).

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

12625421022 is a wasteful number, since it uses less digits than its factorization.

12625421022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233804104 (or 233804098 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 12625421022 its reverse (22012452621), we get a palindrome (34637873643).

The spelling of 12625421022 in words is "twelve billion, six hundred twenty-five million, four hundred twenty-one thousand, twenty-two".