12099700 has 18 divisors (see below), whose sum is σ = 26256566. Its totient is φ = 4839840.

The previous prime is 12099691. The next prime is 12099707. The reversal of 12099700 is 799021.

It can be written as a sum of positive squares in 3 ways, for example, as 729316 + 11370384 = 854^2 + 3372^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12099707) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60399 + ... + 60598.

Almost surely, 2^12099700 is an apocalyptic number.

12099700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12099700 is an abundant number, since it is smaller than the sum of its proper divisors (14156866).

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

12099700 is a wasteful number, since it uses less digits than its factorization.

12099700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121011 (or 121004 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 12099700 is about 3478.4623039498. The cubic root of 12099700 is about 229.5751451199.

The spelling of 12099700 in words is "twelve million, ninety-nine thousand, seven hundred".