222820093 has 2 divisors, whose sum is σ = 222820094. Its totient is φ = 222820092.

The previous prime is 222820063. The next prime is 222820099. The reversal of 222820093 is 390028222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122279364 + 100540729 = 11058^2 + 10027^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222820093 is a prime.

It is a super-3 number, since 3×222820093³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222820099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111410046 + 111410047.

It is an arithmetic number, because the mean of its divisors is an integer number (111410047).

Almost surely, 2^222820093 is an apocalyptic number.

It is an amenable number.

222820093 is a deficient number, since it is larger than the sum of its proper divisors (1).

222820093 is an equidigital number, since it uses as much as digits as its factorization.

222820093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 222820093 is about 14927.1595757532. The cubic root of 222820093 is about 606.2495795087.

The spelling of 222820093 in words is "two hundred twenty-two million, eight hundred twenty thousand, ninety-three".