1102202120249 has 2 divisors, whose sum is σ = 1102202120250. Its totient is φ = 1102202120248.

The previous prime is 1102202120191. The next prime is 1102202120273. The reversal of 1102202120249 is 9420212022011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1091857806400 + 10344313849 = 1044920^2 + 101707^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1102202120249 is a prime.

It is not a weakly prime, because it can be changed into another prime (1102202120449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551101060124 + 551101060125.

It is an arithmetic number, because the mean of its divisors is an integer number (551101060125).

Almost surely, 2^{1102202120249} is an apocalyptic number.

It is an amenable number.

1102202120249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102202120249 is an equidigital number, since it uses as much as digits as its factorization.

1102202120249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 1102202120249 in words is "one trillion, one hundred two billion, two hundred two million, one hundred twenty thousand, two hundred forty-nine".