12236121250 has 20 divisors (see below), whose sum is σ = 22935388014. Its totient is φ = 4894448000.

The previous prime is 12236121173. The next prime is 12236121253. The reversal of 12236121250 is 5212163221.

It can be written as a sum of positive squares in 5 ways, for example, as 885481 + 12235235769 = 941^2 + 110613^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (12236121253) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4893199 + ... + 4895698.

Almost surely, 2^12236121250 is an apocalyptic number.

12236121250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12236121250 is a deficient number, since it is larger than the sum of its proper divisors (10699266764).

12236121250 is an frugal number, since it uses more digits than its factorization.

12236121250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9788919 (or 9788904 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 12236121250 its reverse (5212163221), we get a palindrome (17448284471).

The spelling of 12236121250 in words is "twelve billion, two hundred thirty-six million, one hundred twenty-one thousand, two hundred fifty".