40224044220225 has 24 divisors (see below), whose sum is σ = 66504720380832. Its totient is φ = 21452511561600.

The previous prime is 40224044220109. The next prime is 40224044220307. The reversal of 40224044220225 is 52202244042204.

It is not a de Polignac number, because 40224044220225 - 2¹⁶ = 40224044154689 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, 1337229 + ... + 9068421.

It is an arithmetic number, because the mean of its divisors is an integer number (2771030015868).

Almost surely, 2^{40224044220225} is an apocalyptic number.

It is an amenable number.

40224044220225 is a deficient number, since it is larger than the sum of its proper divisors (26280676160607).

40224044220225 is a wasteful number, since it uses less digits than its factorization.

40224044220225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7800577 (or 7800572 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 33.

Adding to 40224044220225 its reverse (52202244042204), we get a palindrome (92426288262429).

The spelling of 40224044220225 in words is "forty trillion, two hundred twenty-four billion, forty-four million, two hundred twenty thousand, two hundred twenty-five".