100122210989 has 2 divisors, whose sum is σ = 100122210990. Its totient is φ = 100122210988.

The previous prime is 100122210953. The next prime is 100122211031. The reversal of 100122210989 is 989012221001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98351232100 + 1770978889 = 313610^2 + 42083^2 .

It is a cyclic number.

It is not a de Polignac number, because 100122210989 - 2¹² = 100122206893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100122210389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50061105494 + 50061105495.

It is an arithmetic number, because the mean of its divisors is an integer number (50061105495).

Almost surely, 2^100122210989 is an apocalyptic number.

It is an amenable number.

100122210989 is a deficient number, since it is larger than the sum of its proper divisors (1).

100122210989 is an equidigital number, since it uses as much as digits as its factorization.

100122210989 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 35.

The spelling of 100122210989 in words is "one hundred billion, one hundred twenty-two million, two hundred ten thousand, nine hundred eighty-nine".