22222202321425 has 24 divisors (see below), whose sum is σ = 28447224038912. Its totient is φ = 17202589056000.

The previous prime is 22222202321387. The next prime is 22222202321453. The reversal of 22222202321425 is 52412320222222.

It is not a de Polignac number, because 22222202321425 - 2¹¹ = 22222202319377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6478420 + ... + 9295930.

Almost surely, 2^{22222202321425} is an apocalyptic number.

22222202321425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22222202321425 is a deficient number, since it is larger than the sum of its proper divisors (6225021717487).

22222202321425 is a wasteful number, since it uses less digits than its factorization.

22222202321425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827729 (or 2827724 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 22222202321425 its reverse (52412320222222), we get a palindrome (74634522543647).

The spelling of 22222202321425 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred two million, three hundred twenty-one thousand, four hundred twenty-five".