221032211011 has 16 divisors (see below), whose sum is σ = 230944706784. Its totient is φ = 211379825664.

The previous prime is 221032210981. The next prime is 221032211053. The reversal of 221032211011 is 110112230122.

It is a cyclic number.

It is not a de Polignac number, because 221032211011 - 2⁵ = 221032210979 is a prime.

It is a super-2 number, since 2×221032211011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221032211711) 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, 173055 + ... + 687031.

It is an arithmetic number, because the mean of its divisors is an integer number (14434044174).

Almost surely, 2^221032211011 is an apocalyptic number.

221032211011 is a deficient number, since it is larger than the sum of its proper divisors (9912495773).

221032211011 is a wasteful number, since it uses less digits than its factorization.

221032211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514230.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 221032211011 its reverse (110112230122), we get a palindrome (331144441133).

The spelling of 221032211011 in words is "two hundred twenty-one billion, thirty-two million, two hundred eleven thousand, eleven".