221150500 has 48 divisors (see below), whose sum is σ = 508435200. Its totient is φ = 83800800.

The previous prime is 221150477. The next prime is 221150533. The reversal of 221150500 is 5051122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2140 + ... + 21139.

It is an arithmetic number, because the mean of its divisors is an integer number (10592400).

Almost surely, 2^221150500 is an apocalyptic number.

221150500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221150500 is an abundant number, since it is smaller than the sum of its proper divisors (287284700).

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

221150500 is a wasteful number, since it uses less digits than its factorization.

221150500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23317 (or 23305 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 221150500 is about 14871.1297486102. The cubic root of 221150500 is about 604.7315704670.

The spelling of 221150500 in words is "two hundred twenty-one million, one hundred fifty thousand, five hundred".