12011202900 has 216 divisors, whose sum is σ = 38801162400. Its totient is φ = 3106010880.

The previous prime is 12011202883. The next prime is 12011202911. The reversal of 12011202900 is 920211021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5765259 + ... + 5767341.

Almost surely, 2^12011202900 is an apocalyptic number.

12011202900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12011202900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19400581200).

12011202900 is an abundant number, since it is smaller than the sum of its proper divisors (26789959500).

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

12011202900 is a wasteful number, since it uses less digits than its factorization.

12011202900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295 (or 2285 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 12011202900 its reverse (920211021), we get a palindrome (12931413921).

The spelling of 12011202900 in words is "twelve billion, eleven million, two hundred two thousand, nine hundred".