22221051351225 has 192 divisors, whose sum is σ = 38841813964800. Its totient is φ = 11196351129600.

The previous prime is 22221051351217. The next prime is 22221051351259. The reversal of 22221051351225 is 52215315012222.

It is not a de Polignac number, because 22221051351225 - 2³ = 22221051351217 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 12434834782 + ... + 12434836568.

It is an arithmetic number, because the mean of its divisors is an integer number (202301114400).

Almost surely, 2^{22221051351225} is an apocalyptic number.

22221051351225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22221051351225 is a deficient number, since it is larger than the sum of its proper divisors (16620762613575).

22221051351225 is a wasteful number, since it uses less digits than its factorization.

22221051351225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640 (or 2635 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 22221051351225 its reverse (52215315012222), we get a palindrome (74436366363447).

The spelling of 22221051351225 in words is "twenty-two trillion, two hundred twenty-one billion, fifty-one million, three hundred fifty-one thousand, two hundred twenty-five".