221011110011 has 32 divisors (see below), whose sum is σ = 235756785600. Its totient is φ = 206857728000.

The previous prime is 221011109989. The next prime is 221011110029. The reversal of 221011110011 is 110011110122.

It is a cyclic number.

It is not a de Polignac number, because 221011110011 - 2¹⁸ = 221010847867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221011109974 and 221011110001.

It is not an unprimeable number, because it can be changed into a prime (221011110041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52110851 + ... + 52115091.

It is an arithmetic number, because the mean of its divisors is an integer number (7367399550).

Almost surely, 2^221011110011 is an apocalyptic number.

221011110011 is a deficient number, since it is larger than the sum of its proper divisors (14745675589).

221011110011 is a wasteful number, since it uses less digits than its factorization.

221011110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4751.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 221011110011 its reverse (110011110122), we get a palindrome (331022220133).

The spelling of 221011110011 in words is "two hundred twenty-one billion, eleven million, one hundred ten thousand, eleven".