22225252012000 has 96 divisors (see below), whose sum is σ = 54612818507520. Its totient is φ = 8889225868800.

The previous prime is 22225252011997. The next prime is 22225252012057. The reversal of 22225252012000 is 21025252222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 41159761 + ... + 41696239.

It is an arithmetic number, because the mean of its divisors is an integer number (568883526120).

Almost surely, 2^{22225252012000} is an apocalyptic number.

22225252012000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22225252012000 is an abundant number, since it is smaller than the sum of its proper divisors (32387566495520).

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

22225252012000 is a wasteful number, since it uses less digits than its factorization.

22225252012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546861 (or 546843 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 22225252012000 its reverse (21025252222), we get a palindrome (22246277264222).

The spelling of 22225252012000 in words is "twenty-two trillion, two hundred twenty-five billion, two hundred fifty-two million, twelve thousand".