100222554 has 8 divisors (see below), whose sum is σ = 200445120. Its totient is φ = 33407516.

The previous prime is 100222541. The next prime is 100222559. The reversal of 100222554 is 455222001.

It is a happy number.

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

100222554 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 100222554.

It is not an unprimeable number, because it can be changed into a prime (100222559) 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, 8351874 + ... + 8351885.

It is an arithmetic number, because the mean of its divisors is an integer number (25055640).

Almost surely, 2^100222554 is an apocalyptic number.

100222554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100222554 is a wasteful number, since it uses less digits than its factorization.

100222554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16703764.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 100222554 is about 10011.1215155945. The cubic root of 100222554 is about 464.5029629535.

Adding to 100222554 its reverse (455222001), we get a palindrome (555444555).

The spelling of 100222554 in words is "one hundred million, two hundred twenty-two thousand, five hundred fifty-four".