220031112211 has 2 divisors, whose sum is σ = 220031112212. Its totient is φ = 220031112210.

The previous prime is 220031112181. The next prime is 220031112221. The reversal of 220031112211 is 112211130022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220031112211 is a prime.

It is not a weakly prime, because it can be changed into another prime (220031112221) 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 as a sum of consecutive naturals, namely, 110015556105 + 110015556106.

It is an arithmetic number, because the mean of its divisors is an integer number (110015556106).

Almost surely, 2^220031112211 is an apocalyptic number.

220031112211 is a deficient number, since it is larger than the sum of its proper divisors (1).

220031112211 is an equidigital number, since it uses as much as digits as its factorization.

220031112211 is an odious number, because the sum of its binary digits is odd.

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

Adding to 220031112211 its reverse (112211130022), we get a palindrome (332242242233).

The spelling of 220031112211 in words is "two hundred twenty billion, thirty-one million, one hundred twelve thousand, two hundred eleven".