12011211012200 has 48 divisors (see below), whose sum is σ = 27953100029580. Its totient is φ = 4799833320960.

The previous prime is 12011211012107. The next prime is 12011211012239. The reversal of 12011211012200 is 221011211021.

It can be written as a sum of positive squares in 6 ways, for example, as 4109029001476 + 7902182010724 = 2027074^2 + 2811082^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28862159 + ... + 29275358.

Almost surely, 2^{12011211012200} is an apocalyptic number.

12011211012200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011211012200 is an abundant number, since it is smaller than the sum of its proper divisors (15941889017380).

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

12011211012200 is a wasteful number, since it uses less digits than its factorization.

12011211012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58138566 (or 58138557 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12011211012200 its reverse (221011211021), we get a palindrome (12232222223221).

The spelling of 12011211012200 in words is "twelve trillion, eleven billion, two hundred eleven million, twelve thousand, two hundred".