11722000225 has 48 divisors (see below), whose sum is σ = 16607405808. Its totient is φ = 8130723840.

The previous prime is 11722000223. The next prime is 11722000231. The reversal of 11722000225 is 52200022711.

It can be written as a sum of positive squares in 24 ways, for example, as 2348662369 + 9373337856 = 48463^2 + 96816^2 .

It is not a de Polignac number, because 11722000225 - 2¹ = 11722000223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11722000196 and 11722000205.

It is not an unprimeable number, because it can be changed into a prime (11722000223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3186087 + ... + 3189763.

It is an arithmetic number, because the mean of its divisors is an integer number (345987621).

Almost surely, 2^11722000225 is an apocalyptic number.

11722000225 is the 62509-th octagonal number.

It is an amenable number.

11722000225 is a deficient number, since it is larger than the sum of its proper divisors (4885405583).

11722000225 is a wasteful number, since it uses less digits than its factorization.

11722000225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4294 (or 4289 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

Adding to 11722000225 its reverse (52200022711), we get a palindrome (63922022936).

The spelling of 11722000225 in words is "eleven billion, seven hundred twenty-two million, two hundred twenty-five", and thus it is an aban number.