11213322121 has 8 divisors (see below), whose sum is σ = 11327402880. Its totient is φ = 11099413488.

The previous prime is 11213322103. The next prime is 11213322203. The reversal of 11213322121 is 12122331211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11213322121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11213322521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90000 + ... + 174718.

It is an arithmetic number, because the mean of its divisors is an integer number (1415925360).

Almost surely, 2^11213322121 is an apocalyptic number.

It is an amenable number.

11213322121 is a deficient number, since it is larger than the sum of its proper divisors (114080759).

11213322121 is a wasteful number, since it uses less digits than its factorization.

11213322121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86063.

The product of its digits is 144, while the sum is 19.

Adding to 11213322121 its reverse (12122331211), we get a palindrome (23335653332).

The spelling of 11213322121 in words is "eleven billion, two hundred thirteen million, three hundred twenty-two thousand, one hundred twenty-one".