12101012291 has 2 divisors, whose sum is σ = 12101012292. Its totient is φ = 12101012290.

The previous prime is 12101012251. The next prime is 12101012299. The reversal of 12101012291 is 19221010121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12101012291 - 2¹⁰ = 12101011267 is a prime.

It is a super-3 number, since 3×12101012291³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (12101012299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050506145 + 6050506146.

It is an arithmetic number, because the mean of its divisors is an integer number (6050506146).

Almost surely, 2^12101012291 is an apocalyptic number.

12101012291 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101012291 is an equidigital number, since it uses as much as digits as its factorization.

12101012291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 12101012291 in words is "twelve billion, one hundred one million, twelve thousand, two hundred ninety-one".