220011212111 has 2 divisors, whose sum is σ = 220011212112. Its totient is φ = 220011212110.

The previous prime is 220011212089. The next prime is 220011212129. The reversal of 220011212111 is 111212110022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220011212111 - 2¹⁴ = 220011195727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220011212411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110005606055 + 110005606056.

It is an arithmetic number, because the mean of its divisors is an integer number (110005606056).

Almost surely, 2^220011212111 is an apocalyptic number.

220011212111 is a deficient number, since it is larger than the sum of its proper divisors (1).

220011212111 is an equidigital number, since it uses as much as digits as its factorization.

220011212111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 220011212111 its reverse (111212110022), we get a palindrome (331223322133).

The spelling of 220011212111 in words is "two hundred twenty billion, eleven million, two hundred twelve thousand, one hundred eleven".