12121201711 has 2 divisors, whose sum is σ = 12121201712. Its totient is φ = 12121201710.

The previous prime is 12121201681. The next prime is 12121201751. The reversal of 12121201711 is 11710212121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12121201711 - 2⁵ = 12121201679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12121201751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060600855 + 6060600856.

It is an arithmetic number, because the mean of its divisors is an integer number (6060600856).

Almost surely, 2^12121201711 is an apocalyptic number.

12121201711 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121201711 is an equidigital number, since it uses as much as digits as its factorization.

12121201711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 19.

Adding to 12121201711 its reverse (11710212121), we get a palindrome (23831413832).

The spelling of 12121201711 in words is "twelve billion, one hundred twenty-one million, two hundred one thousand, seven hundred eleven".