1122021221113 has 4 divisors (see below), whose sum is σ = 1208330545828. Its totient is φ = 1035711896400.

The previous prime is 1122021221077. The next prime is 1122021221137. The reversal of 1122021221113 is 3111221202211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 230787042409 + 891234178704 = 480403^2 + 944052^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122021221113 - 2⁹ = 1122021220601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122021221183) 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, 43154662338 + ... + 43154662363.

It is an arithmetic number, because the mean of its divisors is an integer number (302082636457).

Almost surely, 2^{1122021221113} is an apocalyptic number.

1122021221113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1122021221113 is a deficient number, since it is larger than the sum of its proper divisors (86309324715).

1122021221113 is an equidigital number, since it uses as much as digits as its factorization.

1122021221113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86309324714.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1122021221113 its reverse (3111221202211), we get a palindrome (4233242423324).

The spelling of 1122021221113 in words is "one trillion, one hundred twenty-two billion, twenty-one million, two hundred twenty-one thousand, one hundred thirteen".