222020011 has 2 divisors, whose sum is σ = 222020012. Its totient is φ = 222020010.

The previous prime is 222019999. The next prime is 222020033. The reversal of 222020011 is 110020222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222020011 - 2¹¹ = 222017963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222020011.

It is not a weakly prime, because it can be changed into another prime (222020411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111010005 + 111010006.

It is an arithmetic number, because the mean of its divisors is an integer number (111010006).

Almost surely, 2^222020011 is an apocalyptic number.

222020011 is a deficient number, since it is larger than the sum of its proper divisors (1).

222020011 is an equidigital number, since it uses as much as digits as its factorization.

222020011 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 10.

The square root of 222020011 is about 14900.3359358103. The cubic root of 222020011 is about 605.5230874355.

Adding to 222020011 its reverse (110020222), we get a palindrome (332040233).

The spelling of 222020011 in words is "two hundred twenty-two million, twenty thousand, eleven".