221011121000111 has 16 divisors (see below), whose sum is σ = 239728301719200. Its totient is φ = 202539178695168.

The previous prime is 221011121000083. The next prime is 221011121000113. The reversal of 221011121000111 is 111000121110122.

221011121000111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 221011121000111 - 2⁴⁶ = 150642376822447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221011121000113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110422355 + ... + 112406043.

It is an arithmetic number, because the mean of its divisors is an integer number (14983018857450).

Almost surely, 2^{221011121000111} is an apocalyptic number.

221011121000111 is a deficient number, since it is larger than the sum of its proper divisors (18717180719089).

221011121000111 is a wasteful number, since it uses less digits than its factorization.

221011121000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045498.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 221011121000111 its reverse (111000121110122), we get a palindrome (332011242110233).

The spelling of 221011121000111 in words is "two hundred twenty-one trillion, eleven billion, one hundred twenty-one million, one hundred eleven", and thus it is an aban number.