100022231 has 4 divisors (see below), whose sum is σ = 100378464. Its totient is φ = 99666000.

The previous prime is 100022227. The next prime is 100022233. The reversal of 100022231 is 132220001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100022231 - 2² = 100022227 is a prime.

It is a super-2 number, since 2×100022231² = 20008893388434722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100022233) 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 3 ways as a sum of consecutive naturals, for example, 177695 + ... + 178256.

It is an arithmetic number, because the mean of its divisors is an integer number (25094616).

Almost surely, 2^100022231 is an apocalyptic number.

100022231 is a deficient number, since it is larger than the sum of its proper divisors (356233).

100022231 is an equidigital number, since it uses as much as digits as its factorization.

100022231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356232.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 100022231 is about 10001.1114882297. Note that the first 3 decimals coincide. The cubic root of 100022231 is about 464.1932765332.

Adding to 100022231 its reverse (132220001), we get a palindrome (232242232).

The spelling of 100022231 in words is "one hundred million, twenty-two thousand, two hundred thirty-one".