1122001993 has 4 divisors (see below), whose sum is σ = 1282288000. Its totient is φ = 961715988.

The previous prime is 1122001987. The next prime is 1122002009. The reversal of 1122001993 is 3991002211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1122001993 - 2⁵ = 1122001961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122001943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80142993 + ... + 80143006.

It is an arithmetic number, because the mean of its divisors is an integer number (320572000).

Almost surely, 2^1122001993 is an apocalyptic number.

It is an amenable number.

1122001993 is a deficient number, since it is larger than the sum of its proper divisors (160286007).

1122001993 is an equidigital number, since it uses as much as digits as its factorization.

1122001993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160286006.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 1122001993 is about 33496.2981984577. The cubic root of 1122001993 is about 1039.1172221036.

The spelling of 1122001993 in words is "one billion, one hundred twenty-two million, one thousand, nine hundred ninety-three".