25221225110 has 16 divisors (see below), whose sum is σ = 45866229696. Its totient is φ = 9984484608.

The previous prime is 25221225103. The next prime is 25221225149. The reversal of 25221225110 is 1152212252.

It is a super-2 number, since 2×25221225110² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12999662 + ... + 13001601.

It is an arithmetic number, because the mean of its divisors is an integer number (2866639356).

Almost surely, 2^25221225110 is an apocalyptic number.

25221225110 is a deficient number, since it is larger than the sum of its proper divisors (20645004586).

25221225110 is a wasteful number, since it uses less digits than its factorization.

25221225110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26001367.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 25221225110 its reverse (1152212252), we get a palindrome (26373437362).

The spelling of 25221225110 in words is "twenty-five billion, two hundred twenty-one million, two hundred twenty-five thousand, one hundred ten".