100421222 has 8 divisors (see below), whose sum is σ = 164325672. Its totient is φ = 45646000.

The previous prime is 100421221. The next prime is 100421231. The reversal of 100421222 is 222124001.

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 = 100421197 and 100421206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100421221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2282279 + ... + 2282322.

It is an arithmetic number, because the mean of its divisors is an integer number (20540709).

Almost surely, 2^100421222 is an apocalyptic number.

100421222 is a deficient number, since it is larger than the sum of its proper divisors (63904450).

100421222 is a wasteful number, since it uses less digits than its factorization.

100421222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4564614.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 100421222 is about 10021.0389680911. The cubic root of 100421222 is about 464.8096835542.

Adding to 100421222 its reverse (222124001), we get a palindrome (322545223).

The spelling of 100421222 in words is "one hundred million, four hundred twenty-one thousand, two hundred twenty-two".