1122000212121 has 8 divisors (see below), whose sum is σ = 1509239223840. Its totient is φ = 741380670912.

The previous prime is 1122000212089. The next prime is 1122000212159. The reversal of 1122000212121 is 1212120002211.

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

It is not a de Polignac number, because 1122000212121 - 2⁵ = 1122000212089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1122000212121.

It is not an unprimeable number, because it can be changed into a prime (1122000212171) 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 7 ways as a sum of consecutive naturals, for example, 1654867231 + ... + 1654867908.

It is an arithmetic number, because the mean of its divisors is an integer number (188654902980).

Almost surely, 2^{1122000212121} is an apocalyptic number.

It is an amenable number.

1122000212121 is a deficient number, since it is larger than the sum of its proper divisors (387239011719).

1122000212121 is a wasteful number, since it uses less digits than its factorization.

1122000212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309735255.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1122000212121 its reverse (1212120002211), we get a palindrome (2334120214332).

The spelling of 1122000212121 in words is "one trillion, one hundred twenty-two billion, two hundred twelve thousand, one hundred twenty-one".