1118772211 has 2 divisors, whose sum is σ = 1118772212. Its totient is φ = 1118772210.

The previous prime is 1118772197. The next prime is 1118772241. The reversal of 1118772211 is 1122778111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1118772211 is a prime.

It is not a weakly prime, because it can be changed into another prime (1118772241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559386105 + 559386106.

It is an arithmetic number, because the mean of its divisors is an integer number (559386106).

Almost surely, 2^1118772211 is an apocalyptic number.

1118772211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118772211 is an equidigital number, since it uses as much as digits as its factorization.

1118772211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1568, while the sum is 31.

The square root of 1118772211 is about 33448.0524246181. The cubic root of 1118772211 is about 1038.1192002407.

The spelling of 1118772211 in words is "one billion, one hundred eighteen million, seven hundred seventy-two thousand, two hundred eleven".