2211122113 has 2 divisors, whose sum is σ = 2211122114. Its totient is φ = 2211122112.

The previous prime is 2211122101. The next prime is 2211122129. The reversal of 2211122113 is 3112211122.

It is an a-pointer prime, because the next prime (2211122129) can be obtained adding 2211122113 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2157788304 + 53333809 = 46452^2 + 7303^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211122113 - 2¹³ = 2211113921 is a prime.

It is not a weakly prime, because it can be changed into another prime (2211122513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105561056 + 1105561057.

It is an arithmetic number, because the mean of its divisors is an integer number (1105561057).

Almost surely, 2^2211122113 is an apocalyptic number.

It is an amenable number.

2211122113 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211122113 is an equidigital number, since it uses as much as digits as its factorization.

2211122113 is an evil number, because the sum of its binary digits is even.

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

The square root of 2211122113 is about 47022.5702508912. The cubic root of 2211122113 is about 1302.7794796940.

Adding to 2211122113 its reverse (3112211122), we get a palindrome (5323333235).

The spelling of 2211122113 in words is "two billion, two hundred eleven million, one hundred twenty-two thousand, one hundred thirteen".