12091001200100 has 72 divisors (see below), whose sum is σ = 26351901448488. Its totient is φ = 4815338828800.

The previous prime is 12091001200081. The next prime is 12091001200147. The reversal of 12091001200100 is 100210019021.

It can be written as a sum of positive squares in 12 ways, for example, as 102455047396 + 11988546152704 = 320086^2 + 3462448^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30892832 + ... + 31281768.

It is an arithmetic number, because the mean of its divisors is an integer number (365998631229).

Almost surely, 2^{12091001200100} is an apocalyptic number.

12091001200100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12091001200100 is an abundant number, since it is smaller than the sum of its proper divisors (14260900248388).

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

12091001200100 is a wasteful number, since it uses less digits than its factorization.

12091001200100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390305 (or 390298 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 12091001200100 its reverse (100210019021), we get a palindrome (12191211219121).

The spelling of 12091001200100 in words is "twelve trillion, ninety-one billion, one million, two hundred thousand, one hundred".