1022210993 has 4 divisors (see below), whose sum is σ = 1022741748. Its totient is φ = 1021680240.

The previous prime is 1022210989. The next prime is 1022211017. The reversal of 1022210993 is 3990122201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3990122201 = 13 ⋅306932477.

It can be written as a sum of positive squares in 2 ways, for example, as 697382464 + 324828529 = 26408^2 + 18023^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022210993 - 2² = 1022210989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022210933) 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 in 3 ways as a sum of consecutive naturals, for example, 262478 + ... + 266343.

It is an arithmetic number, because the mean of its divisors is an integer number (255685437).

Almost surely, 2^1022210993 is an apocalyptic number.

It is an amenable number.

1022210993 is a deficient number, since it is larger than the sum of its proper divisors (530755).

1022210993 is an equidigital number, since it uses as much as digits as its factorization.

1022210993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530754.

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

The square root of 1022210993 is about 31972.0345458340. The cubic root of 1022210993 is about 1007.3495166099.

The spelling of 1022210993 in words is "one billion, twenty-two million, two hundred ten thousand, nine hundred ninety-three".