12250100 has 18 divisors (see below), whose sum is σ = 26582934. Its totient is φ = 4900000.

The previous prime is 12250097. The next prime is 12250163. The reversal of 12250100 is 105221.

It can be written as a sum of positive squares in 3 ways, for example, as 4376464 + 7873636 = 2092^2 + 2806^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61151 + ... + 61350.

Almost surely, 2^12250100 is an apocalyptic number.

12250100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12250100 is an abundant number, since it is smaller than the sum of its proper divisors (14332834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12250100 is a wasteful number, since it uses less digits than its factorization.

12250100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122515 (or 122508 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 12250100 is about 3500.0142856851. The cubic root of 12250100 is about 230.5224418715.

Adding to 12250100 its reverse (105221), we get a palindrome (12355321).

The spelling of 12250100 in words is "twelve million, two hundred fifty thousand, one hundred".