100121223 has 8 divisors (see below), whose sum is σ = 137103088. Its totient is φ = 64943424.

The previous prime is 100121213. The next prime is 100121237. The reversal of 100121223 is 322121001.

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

It is not a de Polignac number, because 100121223 - 2⁶ = 100121159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100121199 and 100121208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450886 + ... + 451107.

It is an arithmetic number, because the mean of its divisors is an integer number (17137886).

Almost surely, 2^100121223 is an apocalyptic number.

100121223 is a deficient number, since it is larger than the sum of its proper divisors (36981865).

100121223 is an equidigital number, since it uses as much as digits as its factorization.

100121223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902033.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 100121223 is about 10006.0593142355. The cubic root of 100121223 is about 464.3463633998.

Adding to 100121223 its reverse (322121001), we get a palindrome (422242224).

The spelling of 100121223 in words is "one hundred million, one hundred twenty-one thousand, two hundred twenty-three".