25224211211 has 8 divisors (see below), whose sum is σ = 25296533424. Its totient is φ = 25151948640.

The previous prime is 25224211153. The next prime is 25224211219. The reversal of 25224211211 is 11211242252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25224211211 - 2²² = 25220016907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25224211219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 913865 + ... + 941061.

It is an arithmetic number, because the mean of its divisors is an integer number (3162066678).

Almost surely, 2^25224211211 is an apocalyptic number.

25224211211 is a deficient number, since it is larger than the sum of its proper divisors (72322213).

25224211211 is a wasteful number, since it uses less digits than its factorization.

25224211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29821.

The product of its digits is 640, while the sum is 23.

Adding to 25224211211 its reverse (11211242252), we get a palindrome (36435453463).

The spelling of 25224211211 in words is "twenty-five billion, two hundred twenty-four million, two hundred eleven thousand, two hundred eleven".