11220120049 has 2 divisors, whose sum is σ = 11220120050. Its totient is φ = 11220120048.

The previous prime is 11220120017. The next prime is 11220120053. The reversal of 11220120049 is 94002102211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9876384400 + 1343735649 = 99380^2 + 36657^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220120049 - 2⁵ = 11220120017 is a prime.

It is not a weakly prime, because it can be changed into another prime (11220120089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610060024 + 5610060025.

It is an arithmetic number, because the mean of its divisors is an integer number (5610060025).

Almost surely, 2^11220120049 is an apocalyptic number.

It is an amenable number.

11220120049 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220120049 is an equidigital number, since it uses as much as digits as its factorization.

11220120049 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 22.

The spelling of 11220120049 in words is "eleven billion, two hundred twenty million, one hundred twenty thousand, forty-nine".