221098036 has 12 divisors (see below), whose sum is σ = 387092160. Its totient is φ = 110500280.

The previous prime is 221098019. The next prime is 221098043. The reversal of 221098036 is 630890122.

It is a junction number, because it is equal to n+sod(n) for n = 221097989 and 221098007.

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 3 ways as a sum of consecutive naturals, for example, 796 + ... + 21043.

It is an arithmetic number, because the mean of its divisors is an integer number (32257680).

Almost surely, 2^221098036 is an apocalyptic number.

It is an amenable number.

221098036 is a deficient number, since it is larger than the sum of its proper divisors (165994124).

221098036 is a wasteful number, since it uses less digits than its factorization.

221098036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24374 (or 24372 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 221098036 is about 14869.3656892283. The cubic root of 221098036 is about 604.6837461026.

The spelling of 221098036 in words is "two hundred twenty-one million, ninety-eight thousand, thirty-six".