220001022011 has 2 divisors, whose sum is σ = 220001022012. Its totient is φ = 220001022010.

The previous prime is 220001022001. The next prime is 220001022071. The reversal of 220001022011 is 110220100022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220001022011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220001021983 and 220001022001.

It is not a weakly prime, because it can be changed into another prime (220001022001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110000511005 + 110000511006.

It is an arithmetic number, because the mean of its divisors is an integer number (110000511006).

Almost surely, 2^220001022011 is an apocalyptic number.

220001022011 is a deficient number, since it is larger than the sum of its proper divisors (1).

220001022011 is an equidigital number, since it uses as much as digits as its factorization.

220001022011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 220001022011 its reverse (110220100022), we get a palindrome (330221122033).

The spelling of 220001022011 in words is "two hundred twenty billion, one million, twenty-two thousand, eleven".