220111021000231 has 2 divisors, whose sum is σ = 220111021000232. Its totient is φ = 220111021000230.

The previous prime is 220111021000229. The next prime is 220111021000249. The reversal of 220111021000231 is 132000120111022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220111021000231 - 2¹ = 220111021000229 is a prime.

It is a super-2 number, since 2×220111021000231² (a number of 29 digits) contains 22 as substring.

Together with 220111021000229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220111021000201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110055510500115 + 110055510500116.

It is an arithmetic number, because the mean of its divisors is an integer number (110055510500116).

Almost surely, 2^{220111021000231} is an apocalyptic number.

220111021000231 is a deficient number, since it is larger than the sum of its proper divisors (1).

220111021000231 is an equidigital number, since it uses as much as digits as its factorization.

220111021000231 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 220111021000231 its reverse (132000120111022), we get a palindrome (352111141111253).

The spelling of 220111021000231 in words is "two hundred twenty trillion, one hundred eleven billion, twenty-one million, two hundred thirty-one", and thus it is an aban number.