2221662043 has 2 divisors, whose sum is σ = 2221662044. Its totient is φ = 2221662042.

The previous prime is 2221662031. The next prime is 2221662083. The reversal of 2221662043 is 3402661222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221662043 - 2²¹ = 2219564891 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221662083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110831021 + 1110831022.

It is an arithmetic number, because the mean of its divisors is an integer number (1110831022).

Almost surely, 2^2221662043 is an apocalyptic number.

2221662043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221662043 is an equidigital number, since it uses as much as digits as its factorization.

2221662043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 2221662043 is about 47134.5101067148. The cubic root of 2221662043 is about 1304.8462197992.

The spelling of 2221662043 in words is "two billion, two hundred twenty-one million, six hundred sixty-two thousand, forty-three".