1011220011149 has 2 divisors, whose sum is σ = 1011220011150. Its totient is φ = 1011220011148.

The previous prime is 1011220011119. The next prime is 1011220011203. The reversal of 1011220011149 is 9411100221101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 982711377124 + 28508634025 = 991318^2 + 168845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011220011149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011220011119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505610005574 + 505610005575.

It is an arithmetic number, because the mean of its divisors is an integer number (505610005575).

Almost surely, 2^{1011220011149} is an apocalyptic number.

It is an amenable number.

1011220011149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011220011149 is an equidigital number, since it uses as much as digits as its factorization.

1011220011149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 1011220011149 in words is "one trillion, eleven billion, two hundred twenty million, eleven thousand, one hundred forty-nine".