11002212111221 has 8 divisors (see below), whose sum is σ = 11167750511424. Its totient is φ = 10836712719360.

The previous prime is 11002212111211. The next prime is 11002212111259. The reversal of 11002212111221 is 12211121220011.

11002212111221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11002212111221 - 2²⁶ = 11002145002357 is a prime.

It is a super-4 number, since 4×11002212111221⁴ (a number of 53 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11002212111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002212111211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9183500 + ... + 10312181.

It is an arithmetic number, because the mean of its divisors is an integer number (1395968813928).

Almost surely, 2^{11002212111221} is an apocalyptic number.

It is an amenable number.

11002212111221 is a deficient number, since it is larger than the sum of its proper divisors (165538400203).

11002212111221 is an equidigital number, since it uses as much as digits as its factorization.

11002212111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19504171.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11002212111221 its reverse (12211121220011), we get a palindrome (23213333331232).

The spelling of 11002212111221 in words is "eleven trillion, two billion, two hundred twelve million, one hundred eleven thousand, two hundred twenty-one".