121210211122087 has 2 divisors, whose sum is σ = 121210211122088. Its totient is φ = 121210211122086.

The previous prime is 121210211122001. The next prime is 121210211122093. The reversal of 121210211122087 is 780221112012121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121210211122087 - 2³⁹ = 120660455308199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121210211123087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605105561043 + 60605105561044.

It is an arithmetic number, because the mean of its divisors is an integer number (60605105561044).

Almost surely, 2^{121210211122087} is an apocalyptic number.

121210211122087 is a deficient number, since it is larger than the sum of its proper divisors (1).

121210211122087 is an equidigital number, since it uses as much as digits as its factorization.

121210211122087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 31.

The spelling of 121210211122087 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred eleven million, one hundred twenty-two thousand, eighty-seven".