425421624222 has 48 divisors (see below), whose sum is σ = 1053549031392. Its totient is φ = 121534721280.

The previous prime is 425421624151. The next prime is 425421624233. The reversal of 425421624222 is 222426124524.

425421624222 is a `hidden beast` number, since 4 + 2 + 5 + 4 + 2 + 1 + 624 + 2 + 22 = 666.

425421624222 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 899338 + ... + 1288274.

It is an arithmetic number, because the mean of its divisors is an integer number (21948938154).

Almost surely, 2^425421624222 is an apocalyptic number.

425421624222 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

425421624222 is an abundant number, since it is smaller than the sum of its proper divisors (628127407170).

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

425421624222 is a wasteful number, since it uses less digits than its factorization.

425421624222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397633 (or 397630 counting only the distinct ones).

The product of its digits is 122880, while the sum is 36.

Adding to 425421624222 its reverse (222426124524), we get a palindrome (647847748746).

The spelling of 425421624222 in words is "four hundred twenty-five billion, four hundred twenty-one million, six hundred twenty-four thousand, two hundred twenty-two".