221334076 has 24 divisors (see below), whose sum is σ = 392232960. Its totient is φ = 109276272.

The previous prime is 221334023. The next prime is 221334107. The reversal of 221334076 is 670433122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120501 + ... + 122323.

It is an arithmetic number, because the mean of its divisors is an integer number (16343040).

Almost surely, 2^221334076 is an apocalyptic number.

It is an amenable number.

221334076 is a deficient number, since it is larger than the sum of its proper divisors (170898884).

221334076 is a wasteful number, since it uses less digits than its factorization.

221334076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193 (or 2191 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 221334076 is about 14877.3006960268. The cubic root of 221334076 is about 604.8988524756.

Adding to 221334076 its reverse (670433122), we get a palindrome (891767198).

The spelling of 221334076 in words is "two hundred twenty-one million, three hundred thirty-four thousand, seventy-six".