100002231 has 24 divisors (see below), whose sum is σ = 169548704. Its totient is φ = 55598400.

The previous prime is 100002223. The next prime is 100002233. The reversal of 100002231 is 132200001.

It is a happy number.

It is not a de Polignac number, because 100002231 - 2³ = 100002223 is a prime.

It is a super-2 number, since 2×100002231² = 20000892409954722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100002233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19120 + ... + 23781.

Almost surely, 2^100002231 is an apocalyptic number.

100002231 is a deficient number, since it is larger than the sum of its proper divisors (69546473).

100002231 is a wasteful number, since it uses less digits than its factorization.

100002231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42951 (or 42948 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 100002231 is about 10000.1115493778. Note that the first 3 decimals coincide. The cubic root of 100002231 is about 464.1623351305.

Adding to 100002231 its reverse (132200001), we get a palindrome (232202232).

The spelling of 100002231 in words is "one hundred million, two thousand, two hundred thirty-one".