220001120 has 24 divisors (see below), whose sum is σ = 519753024. Its totient is φ = 88000384.

The previous prime is 220001113. The next prime is 220001137. The reversal of 220001120 is 21100022.

220001120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 220001098 and 220001107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 687344 + ... + 687663.

It is an arithmetic number, because the mean of its divisors is an integer number (21656376).

Almost surely, 2^220001120 is an apocalyptic number.

220001120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220001120 is an abundant number, since it is smaller than the sum of its proper divisors (299751904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220001120 is a wasteful number, since it uses less digits than its factorization.

220001120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375022 (or 1375014 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 220001120 is about 14832.4347293356. The cubic root of 220001120 is about 603.6820981065.

Adding to 220001120 its reverse (21100022), we get a palindrome (241101142).

The spelling of 220001120 in words is "two hundred twenty million, one thousand, one hundred twenty".