220043100 has 36 divisors (see below), whose sum is σ = 636658904. Its totient is φ = 58678080.

The previous prime is 220043081. The next prime is 220043101. The reversal of 220043100 is 1340022.

It is a super-2 number, since 2×220043100² = 96837931715220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220043101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366439 + ... + 367038.

Almost surely, 2^220043100 is an apocalyptic number.

220043100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220043100 is an abundant number, since it is smaller than the sum of its proper divisors (416615804).

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

220043100 is a wasteful number, since it uses less digits than its factorization.

220043100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733494 (or 733487 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 220043100 is about 14833.8498037428. The cubic root of 220043100 is about 603.7204933091.

Adding to 220043100 its reverse (1340022), we get a palindrome (221383122).

The spelling of 220043100 in words is "two hundred twenty million, forty-three thousand, one hundred".