221111000011 has 16 divisors (see below), whose sum is σ = 242489684448. Its totient is φ = 199945715200.

The previous prime is 221111000009. The next prime is 221111000029. The reversal of 221111000011 is 110000111122.

It is not a de Polignac number, because 221111000011 - 2¹ = 221111000009 is a prime.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (221111000081) 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, 13758921 + ... + 13774981.

It is an arithmetic number, because the mean of its divisors is an integer number (15155605278).

Almost surely, 2^221111000011 is an apocalyptic number.

221111000011 is a deficient number, since it is larger than the sum of its proper divisors (21378684437).

221111000011 is a wasteful number, since it uses less digits than its factorization.

221111000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22622.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 221111000011 its reverse (110000111122), we get a palindrome (331111111133).

Subtracting from 221111000011 its reverse (110000111122), we obtain a square (111110888889 = 333333²).

The spelling of 221111000011 in words is "two hundred twenty-one billion, one hundred eleven million, eleven", and thus it is an aban number.