12011220195 has 64 divisors (see below), whose sum is σ = 21622616064. Its totient is φ = 5649177600.

The previous prime is 12011220187. The next prime is 12011220197. The reversal of 12011220195 is 59102211021.

It is not a de Polignac number, because 12011220195 - 2³ = 12011220187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12011220197) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6668295 + ... + 6670095.

It is an arithmetic number, because the mean of its divisors is an integer number (337853376).

Almost surely, 2^12011220195 is an apocalyptic number.

12011220195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12011220195 is a deficient number, since it is larger than the sum of its proper divisors (9611395869).

12011220195 is a wasteful number, since it uses less digits than its factorization.

12011220195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332.

The product of its (nonzero) digits is 360, while the sum is 24.

The spelling of 12011220195 in words is "twelve billion, eleven million, two hundred twenty thousand, one hundred ninety-five".