240221100 has 144 divisors (see below), whose sum is σ = 805726208. Its totient is φ = 54120960.

The previous prime is 240221083. The next prime is 240221129. The reversal of 240221100 is 1122042.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152517 + ... + 154083.

Almost surely, 2^240221100 is an apocalyptic number.

240221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240221100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402863104).

240221100 is an abundant number, since it is smaller than the sum of its proper divisors (565505108).

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

240221100 is a wasteful number, since it uses less digits than its factorization.

240221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664 (or 1657 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 240221100 is about 15499.0677138981. The cubic root of 240221100 is about 621.6372784813.

Adding to 240221100 its reverse (1122042), we get a palindrome (241343142).

The spelling of 240221100 in words is "two hundred forty million, two hundred twenty-one thousand, one hundred".