12101971 has 6 divisors (see below), whose sum is σ = 14077860. Its totient is φ = 10373076.

The previous prime is 12101927. The next prime is 12102001. The reversal of 12101971 is 17910121.

12101971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12101971 - 2⁹ = 12101459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12101171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123441 + ... + 123538.

It is an arithmetic number, because the mean of its divisors is an integer number (2346310).

Almost surely, 2^12101971 is an apocalyptic number.

12101971 is a deficient number, since it is larger than the sum of its proper divisors (1975889).

12101971 is an equidigital number, since it uses as much as digits as its factorization.

12101971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246993 (or 246986 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 22.

The square root of 12101971 is about 3478.7887259792. The cubic root of 12101971 is about 229.5895072540.

The spelling of 12101971 in words is "twelve million, one hundred one thousand, nine hundred seventy-one".