10102122111989 has 2 divisors, whose sum is σ = 10102122111990. Its totient is φ = 10102122111988.

The previous prime is 10102122111979. The next prime is 10102122112021. The reversal of 10102122111989 is 98911122120101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10101876939025 + 245172964 = 3178345^2 + 15658^2 .

It is a cyclic number.

It is not a de Polignac number, because 10102122111989 - 2²⁴ = 10102105334773 is a prime.

It is a super-2 number, since 2×10102122111989² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10102122111919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051061055994 + 5051061055995.

It is an arithmetic number, because the mean of its divisors is an integer number (5051061055995).

Almost surely, 2^{10102122111989} is an apocalyptic number.

It is an amenable number.

10102122111989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10102122111989 is an equidigital number, since it uses as much as digits as its factorization.

10102122111989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 38.

The spelling of 10102122111989 in words is "ten trillion, one hundred two billion, one hundred twenty-two million, one hundred eleven thousand, nine hundred eighty-nine".