2211545011 has 16 divisors (see below), whose sum is σ = 2524737600. Its totient is φ = 1919075328.

The previous prime is 2211544999. The next prime is 2211545029. The reversal of 2211545011 is 1105451122.

It is not a de Polignac number, because 2211545011 - 2⁷ = 2211544883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211545051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197655 + ... + 208543.

It is an arithmetic number, because the mean of its divisors is an integer number (157796100).

Almost surely, 2^2211545011 is an apocalyptic number.

2211545011 is a deficient number, since it is larger than the sum of its proper divisors (313192589).

2211545011 is a wasteful number, since it uses less digits than its factorization.

2211545011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11838.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 2211545011 is about 47027.0667913703. The cubic root of 2211545011 is about 1302.8625306952.

Adding to 2211545011 its reverse (1105451122), we get a palindrome (3316996133).

The spelling of 2211545011 in words is "two billion, two hundred eleven million, five hundred forty-five thousand, eleven".