1121299 has 4 divisors (see below), whose sum is σ = 1131336. Its totient is φ = 1111264.

The previous prime is 1121297. The next prime is 1121317. The reversal of 1121299 is 9921211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121299 - 2¹ = 1121297 is a prime.

It is a super-2 number, since 2×1121299² = 2514622894802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4849 + ... + 5074.

It is an arithmetic number, because the mean of its divisors is an integer number (282834).

2^1121299 is an apocalyptic number.

1121299 is a deficient number, since it is larger than the sum of its proper divisors (10037).

1121299 is an equidigital number, since it uses as much as digits as its factorization.

1121299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10036.

The product of its digits is 324, while the sum is 25.

The square root of 1121299 is about 1058.9140663907. The cubic root of 1121299 is about 103.8900156313.

It can be divided in two parts, 11212 and 99, that added together give a palindrome (11311).

The spelling of 1121299 in words is "one million, one hundred twenty-one thousand, two hundred ninety-nine".