2211320231 has 2 divisors, whose sum is σ = 2211320232. Its totient is φ = 2211320230.

The previous prime is 2211320201. The next prime is 2211320261. The reversal of 2211320231 is 1320231122.

It is a balanced prime because it is at equal distance from previous prime (2211320201) and next prime (2211320261).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211320231 is a prime.

It is a super-2 number, since 2×2211320231² = 9779874328059786722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211320201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105660115 + 1105660116.

It is an arithmetic number, because the mean of its divisors is an integer number (1105660116).

Almost surely, 2^2211320231 is an apocalyptic number.

2211320231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211320231 is an equidigital number, since it uses as much as digits as its factorization.

2211320231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2211320231 is about 47024.6768303622. The cubic root of 2211320231 is about 1302.8183884988.

Adding to 2211320231 its reverse (1320231122), we get a palindrome (3531551353).

The spelling of 2211320231 in words is "two billion, two hundred eleven million, three hundred twenty thousand, two hundred thirty-one".