1112211993 has 8 divisors (see below), whose sum is σ = 1505083168. Its totient is φ = 730407744.

The previous prime is 1112211979. The next prime is 1112212001. The reversal of 1112211993 is 3991122111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1112211993 - 2⁴ = 1112211977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1112211993.

It is not an unprimeable number, because it can be changed into a prime (1112211923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2766496 + ... + 2766897.

It is an arithmetic number, because the mean of its divisors is an integer number (188135396).

Almost surely, 2^1112211993 is an apocalyptic number.

It is an amenable number.

1112211993 is a deficient number, since it is larger than the sum of its proper divisors (392871175).

1112211993 is an equidigital number, since it uses as much as digits as its factorization.

1112211993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5533463.

The product of its digits is 972, while the sum is 30.

The square root of 1112211993 is about 33349.8424733911. The cubic root of 1112211993 is about 1036.0861253390.

The spelling of 1112211993 in words is "one billion, one hundred twelve million, two hundred eleven thousand, nine hundred ninety-three".