100421342122 has 4 divisors (see below), whose sum is σ = 150632013186. Its totient is φ = 50210671060.

The previous prime is 100421342113. The next prime is 100421342149. The reversal of 100421342122 is 221243124001.

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., 93942863001 + 6478479121 = 306501^2 + 80489^2 .

It is a super-3 number, since 3×100421342122³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100421342093 and 100421342102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25105335529 + ... + 25105335532.

Almost surely, 2^100421342122 is an apocalyptic number.

100421342122 is a deficient number, since it is larger than the sum of its proper divisors (50210671064).

100421342122 is an equidigital number, since it uses as much as digits as its factorization.

100421342122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50210671063.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 100421342122 its reverse (221243124001), we get a palindrome (321664466123).

The spelling of 100421342122 in words is "one hundred billion, four hundred twenty-one million, three hundred forty-two thousand, one hundred twenty-two".