2221002011 has 2 divisors, whose sum is σ = 2221002012. Its totient is φ = 2221002010.

The previous prime is 2221001983. The next prime is 2221002013. The reversal of 2221002011 is 1102001222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221002011 is a prime.

It is a Sophie Germain prime.

Together with 2221002013, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2221001983 and 2221002001.

It is not a weakly prime, because it can be changed into another prime (2221002013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110501005 + 1110501006.

It is an arithmetic number, because the mean of its divisors is an integer number (1110501006).

Almost surely, 2^2221002011 is an apocalyptic number.

2221002011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221002011 is an equidigital number, since it uses as much as digits as its factorization.

2221002011 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.

The square root of 2221002011 is about 47127.5080075321. The cubic root of 2221002011 is about 1304.7169883880.

Adding to 2221002011 its reverse (1102001222), we get a palindrome (3323003233).

The spelling of 2221002011 in words is "two billion, two hundred twenty-one million, two thousand, eleven".