221343148 has 24 divisors (see below), whose sum is σ = 422434880. Its totient is φ = 100863360.

The previous prime is 221343127. The next prime is 221343149. The reversal of 221343148 is 841343122.

It is not an unprimeable number, because it can be changed into a prime (221343149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22833 + ... + 31048.

Almost surely, 2^221343148 is an apocalyptic number.

It is an amenable number.

221343148 is a deficient number, since it is larger than the sum of its proper divisors (201091732).

221343148 is a wasteful number, since it uses less digits than its factorization.

221343148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53977 (or 53975 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 221343148 is about 14877.6055869216. The cubic root of 221343148 is about 604.9071168566.

The spelling of 221343148 in words is "two hundred twenty-one million, three hundred forty-three thousand, one hundred forty-eight".