1102100219989 has 2 divisors, whose sum is σ = 1102100219990. Its totient is φ = 1102100219988.

The previous prime is 1102100219977. The next prime is 1102100220017. The reversal of 1102100219989 is 9899120012011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 808260335089 + 293839884900 = 899033^2 + 542070^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102100219989 - 2⁹ = 1102100219477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1102100219089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551050109994 + 551050109995.

It is an arithmetic number, because the mean of its divisors is an integer number (551050109995).

Almost surely, 2^{1102100219989} is an apocalyptic number.

It is an amenable number.

1102100219989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102100219989 is an equidigital number, since it uses as much as digits as its factorization.

1102100219989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 43.

The spelling of 1102100219989 in words is "one trillion, one hundred two billion, one hundred million, two hundred nineteen thousand, nine hundred eighty-nine".