100022221 has 8 divisors (see below), whose sum is σ = 109015200. Its totient is φ = 91214832.

The previous prime is 100022201. The next prime is 100022227. The reversal of 100022221 is 122220001.

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

It is a cyclic number.

It is not a de Polignac number, because 100022221 - 2⁷ = 100022093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100022198 and 100022207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100022227) 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, 45271 + ... + 47428.

It is an arithmetic number, because the mean of its divisors is an integer number (13626900).

Almost surely, 2^100022221 is an apocalyptic number.

It is an amenable number.

100022221 is a deficient number, since it is larger than the sum of its proper divisors (8992979).

100022221 is an equidigital number, since it uses as much as digits as its factorization.

100022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92795.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 100022221 is about 10001.1109882853. The cubic root of 100022221 is about 464.1932610635.

Adding to 100022221 its reverse (122220001), we get a palindrome (222242222).

The spelling of 100022221 in words is "one hundred million, twenty-two thousand, two hundred twenty-one".