220220111121211 has 2 divisors, whose sum is σ = 220220111121212. Its totient is φ = 220220111121210.

The previous prime is 220220111121191. The next prime is 220220111121221. The reversal of 220220111121211 is 112121111022022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220220111121211 - 2⁹ = 220220111120699 is a prime.

It is not a weakly prime, because it can be changed into another prime (220220111121221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110110055560605 + 110110055560606.

It is an arithmetic number, because the mean of its divisors is an integer number (110110055560606).

Almost surely, 2^{220220111121211} is an apocalyptic number.

220220111121211 is a deficient number, since it is larger than the sum of its proper divisors (1).

220220111121211 is an equidigital number, since it uses as much as digits as its factorization.

220220111121211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 220220111121211 its reverse (112121111022022), we get a palindrome (332341222143233).

The spelling of 220220111121211 in words is "two hundred twenty trillion, two hundred twenty billion, one hundred eleven million, one hundred twenty-one thousand, two hundred eleven".