100104212423221 has 4 divisors (see below), whose sum is σ = 101076097980832. Its totient is φ = 99132326865612.

The previous prime is 100104212423213. The next prime is 100104212423227. The reversal of 100104212423221 is 122324212401001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100104212423221 - 2³ = 100104212423213 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 (100104212423227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485942778651 + ... + 485942778856.

It is an arithmetic number, because the mean of its divisors is an integer number (25269024495208).

Almost surely, 2^{100104212423221} is an apocalyptic number.

It is an amenable number.

100104212423221 is a deficient number, since it is larger than the sum of its proper divisors (971885557611).

100104212423221 is an equidigital number, since it uses as much as digits as its factorization.

100104212423221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971885557610.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 100104212423221 its reverse (122324212401001), we get a palindrome (222428424824222).

The spelling of 100104212423221 in words is "one hundred trillion, one hundred four billion, two hundred twelve million, four hundred twenty-three thousand, two hundred twenty-one".