2211212113 has 16 divisors (see below), whose sum is σ = 2509701120. Its totient is φ = 1929992400.

The previous prime is 2211212071. The next prime is 2211212141. The reversal of 2211212113 is 3112121122.

It is a cyclic number.

It is not a de Polignac number, because 2211212113 - 2⁹ = 2211211601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211212183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17778 + ... + 68836.

It is an arithmetic number, because the mean of its divisors is an integer number (156856320).

Almost surely, 2^2211212113 is an apocalyptic number.

It is an amenable number.

2211212113 is a deficient number, since it is larger than the sum of its proper divisors (298489007).

2211212113 is a wasteful number, since it uses less digits than its factorization.

2211212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51228.

The product of its digits is 48, while the sum is 16.

The square root of 2211212113 is about 47023.5272283992. The cubic root of 2211212113 is about 1302.7971552687.

Adding to 2211212113 its reverse (3112121122), we get a palindrome (5323333235).

Subtracting 2211212113 from its reverse (3112121122), we obtain a palindrome (900909009).

It can be divided in two parts, 22112 and 12113, that added together give a square (34225 = 185²).

The spelling of 2211212113 in words is "two billion, two hundred eleven million, two hundred twelve thousand, one hundred thirteen".