1122213042121 has 4 divisors (see below), whose sum is σ = 1124956839700. Its totient is φ = 1119469244544.

The previous prime is 1122213042107. The next prime is 1122213042163. The reversal of 1122213042121 is 1212403122211.

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 493736696896 + 628476345225 = 702664^2 + 792765^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122213042121 - 2²³ = 1122204653513 is a prime.

It is a super-3 number, since 3×1122213042121³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122213042092 and 1122213042101.

It is not an unprimeable number, because it can be changed into a prime (1122213042191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1371898176 + ... + 1371898993.

It is an arithmetic number, because the mean of its divisors is an integer number (281239209925).

Almost surely, 2^{1122213042121} is an apocalyptic number.

It is an amenable number.

1122213042121 is a deficient number, since it is larger than the sum of its proper divisors (2743797579).

1122213042121 is an equidigital number, since it uses as much as digits as its factorization.

1122213042121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2743797578.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1122213042121 its reverse (1212403122211), we get a palindrome (2334616164332).

The spelling of 1122213042121 in words is "one trillion, one hundred twenty-two billion, two hundred thirteen million, forty-two thousand, one hundred twenty-one".