2211012989 has 2 divisors, whose sum is σ = 2211012990. Its totient is φ = 2211012988.

The previous prime is 2211012971. The next prime is 2211013003. The reversal of 2211012989 is 9892101122.

2211012989 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., 1676247364 + 534765625 = 40942^2 + 23125^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211012989 - 2⁸ = 2211012733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211012929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105506494 + 1105506495.

It is an arithmetic number, because the mean of its divisors is an integer number (1105506495).

Almost surely, 2^2211012989 is an apocalyptic number.

It is an amenable number.

2211012989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211012989 is an equidigital number, since it uses as much as digits as its factorization.

2211012989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 2211012989 is about 47021.4099001721. The cubic root of 2211012989 is about 1302.7580476127.

The spelling of 2211012989 in words is "two billion, two hundred eleven million, twelve thousand, nine hundred eighty-nine".