11021120249 has 2 divisors, whose sum is σ = 11021120250. Its totient is φ = 11021120248.

The previous prime is 11021120207. The next prime is 11021120263. The reversal of 11021120249 is 94202112011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11018281024 + 2839225 = 104968^2 + 1685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11021120249 is a prime.

It is not a weakly prime, because it can be changed into another prime (11021120849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510560124 + 5510560125.

It is an arithmetic number, because the mean of its divisors is an integer number (5510560125).

Almost surely, 2^11021120249 is an apocalyptic number.

It is an amenable number.

11021120249 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021120249 is an equidigital number, since it uses as much as digits as its factorization.

11021120249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 11021120249 in words is "eleven billion, twenty-one million, one hundred twenty thousand, two hundred forty-nine".