220732101 has 16 divisors (see below), whose sum is σ = 344222400. Its totient is φ = 139409424.

The previous prime is 220732093. The next prime is 220732111. The reversal of 220732101 is 101237022.

It is not a de Polignac number, because 220732101 - 2³ = 220732093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220732111) 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, 214626 + ... + 215651.

It is an arithmetic number, because the mean of its divisors is an integer number (21513900).

Almost surely, 2^220732101 is an apocalyptic number.

It is an amenable number.

220732101 is a deficient number, since it is larger than the sum of its proper divisors (123490299).

220732101 is a wasteful number, since it uses less digits than its factorization.

220732101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430305 (or 430299 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 220732101 is about 14857.0555965844. The cubic root of 220732101 is about 604.3499618397.

Adding to 220732101 its reverse (101237022), we get a palindrome (321969123).

The spelling of 220732101 in words is "two hundred twenty million, seven hundred thirty-two thousand, one hundred one".