12010012200 has 72 divisors (see below), whose sum is σ = 40333630350. Its totient is φ = 3202669440.

The previous prime is 12010012181. The next prime is 12010012303. The reversal of 12010012200 is 221001021.

It can be written as a sum of positive squares in 3 ways, for example, as 4345710084 + 7664302116 = 65922^2 + 87546^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3334315 + ... + 3337914.

Almost surely, 2^12010012200 is an apocalyptic number.

12010012200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12010012200 is an abundant number, since it is smaller than the sum of its proper divisors (28323618150).

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

12010012200 is a wasteful number, since it uses less digits than its factorization.

12010012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6672251 (or 6672239 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12010012200 its reverse (221001021), we get a palindrome (12231013221).

The spelling of 12010012200 in words is "twelve billion, ten million, twelve thousand, two hundred".