222021193 has 2 divisors, whose sum is σ = 222021194. Its totient is φ = 222021192.

The previous prime is 222021161. The next prime is 222021197. The reversal of 222021193 is 391120222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195776064 + 26245129 = 13992^2 + 5123^2 .

It is a cyclic number.

It is not a de Polignac number, because 222021193 - 2⁵ = 222021161 is a prime.

It is a super-2 number, since 2×222021193² = 98586820282286498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222021197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111010596 + 111010597.

It is an arithmetic number, because the mean of its divisors is an integer number (111010597).

Almost surely, 2^222021193 is an apocalyptic number.

It is an amenable number.

222021193 is a deficient number, since it is larger than the sum of its proper divisors (1).

222021193 is an equidigital number, since it uses as much as digits as its factorization.

222021193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 222021193 is about 14900.3755992928. The cubic root of 222021193 is about 605.5241620038.

The spelling of 222021193 in words is "two hundred twenty-two million, twenty-one thousand, one hundred ninety-three".