220021112 has 16 divisors (see below), whose sum is σ = 414360360. Its totient is φ = 109525024.

The previous prime is 220021103. The next prime is 220021163. The reversal of 220021112 is 211120022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220021093 and 220021102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58763 + ... + 62394.

Almost surely, 2^220021112 is an apocalyptic number.

It is an amenable number.

220021112 is a deficient number, since it is larger than the sum of its proper divisors (194339248).

220021112 is a wasteful number, since it uses less digits than its factorization.

220021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121390 (or 121386 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 220021112 is about 14833.1086424930. The cubic root of 220021112 is about 603.7003835391.

Adding to 220021112 its reverse (211120022), we get a palindrome (431141134).

The spelling of 220021112 in words is "two hundred twenty million, twenty-one thousand, one hundred twelve".