100421304122 has 4 divisors (see below), whose sum is σ = 150631956186. Its totient is φ = 50210652060.

The previous prime is 100421304121. The next prime is 100421304133. The reversal of 100421304122 is 221403124001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 99894555721 + 526748401 = 316061^2 + 22951^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100421304094 and 100421304103.

It is not an unprimeable number, because it can be changed into a prime (100421304121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25105326029 + ... + 25105326032.

Almost surely, 2^100421304122 is an apocalyptic number.

100421304122 is a deficient number, since it is larger than the sum of its proper divisors (50210652064).

100421304122 is an equidigital number, since it uses as much as digits as its factorization.

100421304122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50210652063.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 100421304122 its reverse (221403124001), we get a palindrome (321824428123).

The spelling of 100421304122 in words is "one hundred billion, four hundred twenty-one million, three hundred four thousand, one hundred twenty-two".