2251106211 has 4 divisors (see below), whose sum is σ = 3001474952. Its totient is φ = 1500737472.

The previous prime is 2251106203. The next prime is 2251106279. The reversal of 2251106211 is 1126011522.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2251106211 - 2³ = 2251106203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251105211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375184366 + ... + 375184371.

It is an arithmetic number, because the mean of its divisors is an integer number (750368738).

Almost surely, 2^2251106211 is an apocalyptic number.

2251106211 is a deficient number, since it is larger than the sum of its proper divisors (750368741).

2251106211 is an equidigital number, since it uses as much as digits as its factorization.

2251106211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750368740.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 2251106211 is about 47445.8239574359. The cubic root of 2251106211 is about 1310.5854095471.

Adding to 2251106211 its reverse (1126011522), we get a palindrome (3377117733).

The spelling of 2251106211 in words is "two billion, two hundred fifty-one million, one hundred six thousand, two hundred eleven".