2211242231 has 16 divisors (see below), whose sum is σ = 2438149248. Its totient is φ = 1988767200.

The previous prime is 2211242227. The next prime is 2211242233. The reversal of 2211242231 is 1322421122.

It is a cyclic number.

It is not a de Polignac number, because 2211242231 - 2² = 2211242227 is a prime.

It is a super-2 number, since 2×2211242231² = 9779184408315714722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211242233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398780 + ... + 404286.

It is an arithmetic number, because the mean of its divisors is an integer number (152384328).

Almost surely, 2^2211242231 is an apocalyptic number.

2211242231 is a deficient number, since it is larger than the sum of its proper divisors (226907017).

2211242231 is a wasteful number, since it uses less digits than its factorization.

2211242231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5902.

The product of its digits is 384, while the sum is 20.

The square root of 2211242231 is about 47023.8474712565. The cubic root of 2211242231 is about 1302.8030701945.

Adding to 2211242231 its reverse (1322421122), we get a palindrome (3533663353).

It can be divided in two parts, 2211 and 242231, that added together give a palindrome (244442).

The spelling of 2211242231 in words is "two billion, two hundred eleven million, two hundred forty-two thousand, two hundred thirty-one".