12120211000087 has 2 divisors, whose sum is σ = 12120211000088. Its totient is φ = 12120211000086.

The previous prime is 12120210999971. The next prime is 12120211000127. The reversal of 12120211000087 is 78000011202121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12120211000087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12120211010087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060105500043 + 6060105500044.

It is an arithmetic number, because the mean of its divisors is an integer number (6060105500044).

Almost surely, 2^{12120211000087} is an apocalyptic number.

12120211000087 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120211000087 is an equidigital number, since it uses as much as digits as its factorization.

12120211000087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 25.

The spelling of 12120211000087 in words is "twelve trillion, one hundred twenty billion, two hundred eleven million, eighty-seven", and thus it is an aban number.