100424010221 has 4 divisors (see below), whose sum is σ = 100703743200. Its totient is φ = 100144277244.

The previous prime is 100424010191. The next prime is 100424010241. The reversal of 100424010221 is 122010424001.

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 100424010221 - 2¹⁰ = 100424009197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100424010221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100424010241) 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, 139865951 + ... + 139866668.

It is an arithmetic number, because the mean of its divisors is an integer number (25175935800).

Almost surely, 2^100424010221 is an apocalyptic number.

It is an amenable number.

100424010221 is a deficient number, since it is larger than the sum of its proper divisors (279732979).

100424010221 is an equidigital number, since it uses as much as digits as its factorization.

100424010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279732978.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 100424010221 its reverse (122010424001), we get a palindrome (222434434222).

The spelling of 100424010221 in words is "one hundred billion, four hundred twenty-four million, ten thousand, two hundred twenty-one".