4025521222400 has 108 divisors (see below), whose sum is σ = 10021390954512. Its totient is φ = 1600900485120.

The previous prime is 4025521222381. The next prime is 4025521222403. The reversal of 4025521222400 is 42221255204.

It is a happy number.

It is a super-2 number, since 2×4025521222400² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4025521222403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 710684 + ... + 2925083.

Almost surely, 2^{4025521222400} is an apocalyptic number.

4025521222400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4025521222400 is an abundant number, since it is smaller than the sum of its proper divisors (5995869732112).

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

4025521222400 is a wasteful number, since it uses less digits than its factorization.

4025521222400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3635966 (or 3635947 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 4025521222400 its reverse (42221255204), we get a palindrome (4067742477604).

The spelling of 4025521222400 in words is "four trillion, twenty-five billion, five hundred twenty-one million, two hundred twenty-two thousand, four hundred".