1102202120989 has 2 divisors, whose sum is σ = 1102202120990. Its totient is φ = 1102202120988.

The previous prime is 1102202120963. The next prime is 1102202121029. The reversal of 1102202120989 is 9890212022011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 713462340889 + 388739780100 = 844667^2 + 623490^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102202120989 - 2¹⁹ = 1102201596701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1102202120189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551101060494 + 551101060495.

It is an arithmetic number, because the mean of its divisors is an integer number (551101060495).

Almost surely, 2^{1102202120989} is an apocalyptic number.

It is an amenable number.

1102202120989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102202120989 is an equidigital number, since it uses as much as digits as its factorization.

1102202120989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 1102202120989 in words is "one trillion, one hundred two billion, two hundred two million, one hundred twenty thousand, nine hundred eighty-nine".