100323213221 has 8 divisors (see below), whose sum is σ = 125078291904. Its totient is φ = 78173932320.

The previous prime is 100323213217. The next prime is 100323213239. The reversal of 100323213221 is 122312323001.

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

It is not a de Polignac number, because 100323213221 - 2² = 100323213217 is a prime.

It is a super-2 number, since 2×100323213221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100323213193 and 100323213202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100323213271) 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, 651449360 + ... + 651449513.

It is an arithmetic number, because the mean of its divisors is an integer number (15634786488).

Almost surely, 2^100323213221 is an apocalyptic number.

100323213221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100323213221 is a deficient number, since it is larger than the sum of its proper divisors (24755078683).

100323213221 is a wasteful number, since it uses less digits than its factorization.

100323213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302898891.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 100323213221 its reverse (122312323001), we get a palindrome (222635536222).

The spelling of 100323213221 in words is "one hundred billion, three hundred twenty-three million, two hundred thirteen thousand, two hundred twenty-one".