221100038 has 8 divisors (see below), whose sum is σ = 331782240. Its totient is φ = 110505960.

The previous prime is 221100037. The next prime is 221100041. The reversal of 221100038 is 830001122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221099989 and 221100025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221100037) by changing a digit.

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, 15353 + ... + 26036.

It is an arithmetic number, because the mean of its divisors is an integer number (41472780).

Almost surely, 2^221100038 is an apocalyptic number.

221100038 is a deficient number, since it is larger than the sum of its proper divisors (110682202).

221100038 is a wasteful number, since it uses less digits than its factorization.

221100038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44062.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 221100038 is about 14869.4330086927. The cubic root of 221100038 is about 604.6855711953.

The spelling of 221100038 in words is "two hundred twenty-one million, one hundred thousand, thirty-eight".