2102121022159 has 2 divisors, whose sum is σ = 2102121022160. Its totient is φ = 2102121022158.

The previous prime is 2102121022007. The next prime is 2102121022181. The reversal of 2102121022159 is 9512201212012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2102121022159 - 2²⁷ = 2101986804431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102121025159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051060511079 + 1051060511080.

It is an arithmetic number, because the mean of its divisors is an integer number (1051060511080).

Almost surely, 2^{2102121022159} is an apocalyptic number.

2102121022159 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102121022159 is an equidigital number, since it uses as much as digits as its factorization.

2102121022159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 28.

The spelling of 2102121022159 in words is "two trillion, one hundred two billion, one hundred twenty-one million, twenty-two thousand, one hundred fifty-nine".