100420224321 has 4 divisors (see below), whose sum is σ = 133893632432. Its totient is φ = 66946816212.

The previous prime is 100420224319. The next prime is 100420224337. The reversal of 100420224321 is 123422024001.

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 not a de Polignac number, because 100420224321 - 2¹ = 100420224319 is a prime.

It is a super-2 number, since 2×100420224321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100420224341) 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, 16736704051 + ... + 16736704056.

It is an arithmetic number, because the mean of its divisors is an integer number (33473408108).

Almost surely, 2^100420224321 is an apocalyptic number.

It is an amenable number.

100420224321 is a deficient number, since it is larger than the sum of its proper divisors (33473408111).

100420224321 is an equidigital number, since it uses as much as digits as its factorization.

100420224321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33473408110.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 100420224321 its reverse (123422024001), we get a palindrome (223842248322).

The spelling of 100420224321 in words is "one hundred billion, four hundred twenty million, two hundred twenty-four thousand, three hundred twenty-one".