221140112011 has 24 divisors (see below), whose sum is σ = 289124396960. Its totient is φ = 164675745792.

The previous prime is 221140111981. The next prime is 221140112023. The reversal of 221140112011 is 110211041122.

It is not a de Polignac number, because 221140112011 - 2⁹ = 221140111499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221140142011) 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, 4178046 + ... + 4230643.

Almost surely, 2^221140112011 is an apocalyptic number.

221140112011 is a deficient number, since it is larger than the sum of its proper divisors (67984284949).

221140112011 is a wasteful number, since it uses less digits than its factorization.

221140112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8408743 (or 8408726 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221140112011 its reverse (110211041122), we get a palindrome (331351153133).

The spelling of 221140112011 in words is "two hundred twenty-one billion, one hundred forty million, one hundred twelve thousand, eleven".