100223123221 has 8 divisors (see below), whose sum is σ = 108941311584. Its totient is φ = 91649037360.

The previous prime is 100223123173. The next prime is 100223123249. The reversal of 100223123221 is 122321322001.

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

It is a cyclic number.

It is not a de Polignac number, because 100223123221 - 2⁹ = 100223122709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100223153221) 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, 36024175 + ... + 36026956.

It is an arithmetic number, because the mean of its divisors is an integer number (13617663948).

Almost surely, 2^100223123221 is an apocalyptic number.

It is an amenable number.

100223123221 is a deficient number, since it is larger than the sum of its proper divisors (8718188363).

100223123221 is a wasteful number, since it uses less digits than its factorization.

100223123221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72051251.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 100223123221 its reverse (122321322001), we get a palindrome (222544445222).

The spelling of 100223123221 in words is "one hundred billion, two hundred twenty-three million, one hundred twenty-three thousand, two hundred twenty-one".