221134100 has 36 divisors (see below), whose sum is σ = 523487328. Its totient is φ = 80412000.

The previous prime is 221134063. The next prime is 221134153. The reversal of 221134100 is 1431122.

221134100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99416 + ... + 101615.

Almost surely, 2^221134100 is an apocalyptic number.

221134100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221134100 is an abundant number, since it is smaller than the sum of its proper divisors (302353228).

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

221134100 is a wasteful number, since it uses less digits than its factorization.

221134100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201056 (or 201049 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 221134100 is about 14870.5783344159. The cubic root of 221134100 is about 604.7166216080.

Adding to 221134100 its reverse (1431122), we get a palindrome (222565222).

The spelling of 221134100 in words is "two hundred twenty-one million, one hundred thirty-four thousand, one hundred".