11110012211221 has 8 divisors (see below), whose sum is σ = 13851443795904. Its totient is φ = 8657152372320.

The previous prime is 11110012211213. The next prime is 11110012211269. The reversal of 11110012211221 is 12211221001111.

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 11110012211221 - 2³ = 11110012211213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11110012211195 and 11110012211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110012211821) 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, 72142936360 + ... + 72142936513.

It is an arithmetic number, because the mean of its divisors is an integer number (1731430474488).

Almost surely, 2^{11110012211221} is an apocalyptic number.

11110012211221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11110012211221 is a deficient number, since it is larger than the sum of its proper divisors (2741431584683).

11110012211221 is a wasteful number, since it uses less digits than its factorization.

11110012211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144285872891.

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

Adding to 11110012211221 its reverse (12211221001111), we get a palindrome (23321233212332).

It can be divided in two parts, 111100 and 12211221, that added together give a palindrome (12322321).

The spelling of 11110012211221 in words is "eleven trillion, one hundred ten billion, twelve million, two hundred eleven thousand, two hundred twenty-one".