100012222 has 8 divisors (see below), whose sum is σ = 150116400. Its totient is φ = 49973424.

The previous prime is 100012217. The next prime is 100012223. The reversal of 100012222 is 222210001.

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 = 100012199 and 100012208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100012223) 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, 12322 + ... + 18757.

It is an arithmetic number, because the mean of its divisors is an integer number (18764550).

Almost surely, 2^100012222 is an apocalyptic number.

100012222 is a deficient number, since it is larger than the sum of its proper divisors (50104178).

100012222 is a wasteful number, since it uses less digits than its factorization.

100012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32690.

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

The square root of 100012222 is about 10000.6110813290. The cubic root of 100012222 is about 464.1777924239.

Adding to 100012222 its reverse (222210001), we get a palindrome (322222223).

It can be divided in two parts, 10001 and 2222, that multiplied together give a palindrome (22222222).

The spelling of 100012222 in words is "one hundred million, twelve thousand, two hundred twenty-two".