1100120220989 has 2 divisors, whose sum is σ = 1100120220990. Its totient is φ = 1100120220988.

The previous prime is 1100120220977. The next prime is 1100120221037. The reversal of 1100120220989 is 9890220210011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 719684148964 + 380436072025 = 848342^2 + 616795^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100120220989 - 2⁸ = 1100120220733 is a prime.

It is a super-2 number, since 2×1100120220989² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100120220889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550060110494 + 550060110495.

It is an arithmetic number, because the mean of its divisors is an integer number (550060110495).

Almost surely, 2^{1100120220989} is an apocalyptic number.

It is an amenable number.

1100120220989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100120220989 is an equidigital number, since it uses as much as digits as its factorization.

1100120220989 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 1100120220989 in words is "one trillion, one hundred billion, one hundred twenty million, two hundred twenty thousand, nine hundred eighty-nine".