222020993 has 2 divisors, whose sum is σ = 222020994. Its totient is φ = 222020992.

The previous prime is 222020987. The next prime is 222020999. The reversal of 222020993 is 399020222.

222020993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (222020987) and next prime (222020999).

It can be written as a sum of positive squares in only one way, i.e., 221652544 + 368449 = 14888^2 + 607^2 .

It is a cyclic number.

It is not a de Polignac number, because 222020993 - 2⁸ = 222020737 is a prime.

It is not a weakly prime, because it can be changed into another prime (222020999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111010496 + 111010497.

It is an arithmetic number, because the mean of its divisors is an integer number (111010497).

Almost surely, 2^222020993 is an apocalyptic number.

It is an amenable number.

222020993 is a deficient number, since it is larger than the sum of its proper divisors (1).

222020993 is an equidigital number, since it uses as much as digits as its factorization.

222020993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 222020993 is about 14900.3688880511. The cubic root of 222020993 is about 605.5239801820.

The spelling of 222020993 in words is "two hundred twenty-two million, twenty thousand, nine hundred ninety-three".