222019913 has 2 divisors, whose sum is σ = 222019914. Its totient is φ = 222019912.

The previous prime is 222019909. The next prime is 222019927. The reversal of 222019913 is 319910222.

222019913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211760704 + 10259209 = 14552^2 + 3203^2 .

It is a cyclic number.

It is not a de Polignac number, because 222019913 - 2² = 222019909 is a prime.

It is not a weakly prime, because it can be changed into another prime (222010913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111009956 + 111009957.

It is an arithmetic number, because the mean of its divisors is an integer number (111009957).

Almost surely, 2^222019913 is an apocalyptic number.

It is an amenable number.

222019913 is a deficient number, since it is larger than the sum of its proper divisors (1).

222019913 is an equidigital number, since it uses as much as digits as its factorization.

222019913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 222019913 is about 14900.3326472935. The cubic root of 222019913 is about 605.5229983425.

The spelling of 222019913 in words is "two hundred twenty-two million, nineteen thousand, nine hundred thirteen".