4221005111 has 2 divisors, whose sum is σ = 4221005112. Its totient is φ = 4221005110.

The previous prime is 4221005101. The next prime is 4221005141. The reversal of 4221005111 is 1115001224.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4221005111 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4221005111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4221005101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110502555 + 2110502556.

It is an arithmetic number, because the mean of its divisors is an integer number (2110502556).

Almost surely, 2^4221005111 is an apocalyptic number.

4221005111 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221005111 is an equidigital number, since it uses as much as digits as its factorization.

4221005111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 4221005111 is about 64969.2628171199. The cubic root of 4221005111 is about 1616.1138767199.

Adding to 4221005111 its reverse (1115001224), we get a palindrome (5336006335).

The spelling of 4221005111 in words is "four billion, two hundred twenty-one million, five thousand, one hundred eleven".