1121122120213 has 4 divisors (see below), whose sum is σ = 1121124486240. Its totient is φ = 1121119754188.

The previous prime is 1121122120193. The next prime is 1121122120219. The reversal of 1121122120213 is 3120212211211.

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 1121122120213 - 2²⁵ = 1121088565781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121122120219) 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, 199945 + ... + 1510702.

It is an arithmetic number, because the mean of its divisors is an integer number (280281121560).

Almost surely, 2^{1121122120213} is an apocalyptic number.

It is an amenable number.

1121122120213 is a deficient number, since it is larger than the sum of its proper divisors (2366027).

1121122120213 is an equidigital number, since it uses as much as digits as its factorization.

1121122120213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366026.

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

Adding to 1121122120213 its reverse (3120212211211), we get a palindrome (4241334331424).

The spelling of 1121122120213 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred twenty thousand, two hundred thirteen".