221030032011 has 24 divisors (see below), whose sum is σ = 299918734080. Its totient is φ = 144791910384.

The previous prime is 221030031997. The next prime is 221030032019. The reversal of 221030032011 is 110230030122.

It is not a de Polignac number, because 221030032011 - 2⁷ = 221030031883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221030032019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40338570 + ... + 40344048.

It is an arithmetic number, because the mean of its divisors is an integer number (12496613920).

Almost surely, 2^221030032011 is an apocalyptic number.

221030032011 is a deficient number, since it is larger than the sum of its proper divisors (78888702069).

221030032011 is an equidigital number, since it uses as much as digits as its factorization.

221030032011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9463 (or 9404 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 221030032011 its reverse (110230030122), we get a palindrome (331260062133).

The spelling of 221030032011 in words is "two hundred twenty-one billion, thirty million, thirty-two thousand, eleven".