2211211061 has 2 divisors, whose sum is σ = 2211211062. Its totient is φ = 2211211060.

The previous prime is 2211211043. The next prime is 2211211069. The reversal of 2211211061 is 1601121122.

2211211061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1321322500 + 889888561 = 36350^2 + 29831^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211211061 - 2³⁰ = 1137469237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211211069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105605530 + 1105605531.

It is an arithmetic number, because the mean of its divisors is an integer number (1105605531).

Almost surely, 2^2211211061 is an apocalyptic number.

It is an amenable number.

2211211061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211211061 is an equidigital number, since it uses as much as digits as its factorization.

2211211061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 2211211061 is about 47023.5160425079. The cubic root of 2211211061 is about 1302.7969486636.

Adding to 2211211061 its reverse (1601121122), we get a palindrome (3812332183).

The spelling of 2211211061 in words is "two billion, two hundred eleven million, two hundred eleven thousand, sixty-one".