221076093 has 12 divisors (see below), whose sum is σ = 342893760. Its totient is φ = 126329112.

The previous prime is 221076083. The next prime is 221076113. The reversal of 221076093 is 390670122.

It is not a de Polignac number, because 221076093 - 2⁹ = 221075581 is a prime.

It is a super-2 number, since 2×221076093² = 97749277792289298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221076093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221076013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 751813 + ... + 752106.

It is an arithmetic number, because the mean of its divisors is an integer number (28574480).

Almost surely, 2^221076093 is an apocalyptic number.

It is an amenable number.

221076093 is a deficient number, since it is larger than the sum of its proper divisors (121817667).

221076093 is a wasteful number, since it uses less digits than its factorization.

221076093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503936 (or 1503929 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 221076093 is about 14868.6278116039. The cubic root of 221076093 is about 604.6637413803.

The spelling of 221076093 in words is "two hundred twenty-one million, seventy-six thousand, ninety-three".