22501041241225 has 24 divisors (see below), whose sum is σ = 27957427952600. Its totient is φ = 17964647493120.

The previous prime is 22501041241213. The next prime is 22501041241241. The reversal of 22501041241225 is 52214214010522.

It can be written as a sum of positive squares in 12 ways, for example, as 5230808113216 + 17270233128009 = 2287096^2 + 4155747^2 .

It is not a de Polignac number, because 22501041241225 - 2⁴¹ = 20302017985673 is a prime.

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, 27989077 + ... + 28781773.

Almost surely, 2^{22501041241225} is an apocalyptic number.

22501041241225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22501041241225 is a deficient number, since it is larger than the sum of its proper divisors (5456386711375).

22501041241225 is a wasteful number, since it uses less digits than its factorization.

22501041241225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794989 (or 794984 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 22501041241225 its reverse (52214214010522), we get a palindrome (74715255251747).

The spelling of 22501041241225 in words is "twenty-two trillion, five hundred one billion, forty-one million, two hundred forty-one thousand, two hundred twenty-five".