11012200111221 has 8 divisors (see below), whose sum is σ = 15079769521824. Its totient is φ = 7143048720720.

The previous prime is 11012200111189. The next prime is 11012200111223. The reversal of 11012200111221 is 12211100221011.

It is a happy number.

11012200111221 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 not a de Polignac number, because 11012200111221 - 2⁵ = 11012200111189 is a prime.

It is a super-2 number, since 2×11012200111221² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11012200111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012200111223) 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, 49604504895 + ... + 49604505116.

It is an arithmetic number, because the mean of its divisors is an integer number (1884971190228).

Almost surely, 2^{11012200111221} is an apocalyptic number.

It is an amenable number.

11012200111221 is a deficient number, since it is larger than the sum of its proper divisors (4067569410603).

11012200111221 is an equidigital number, since it uses as much as digits as its factorization.

11012200111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99209010051.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11012200111221 its reverse (12211100221011), we get a palindrome (23223300332232).

The spelling of 11012200111221 in words is "eleven trillion, twelve billion, two hundred million, one hundred eleven thousand, two hundred twenty-one".