100421212430 has 128 divisors (see below), whose sum is σ = 239574205440. Its totient is φ = 29358720000.

The previous prime is 100421212349. The next prime is 100421212439. The reversal of 100421212430 is 34212124001.

It is a super-2 number, since 2×100421212430² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100421212439) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1443650 + ... + 1511610.

It is an arithmetic number, because the mean of its divisors is an integer number (1871673480).

Almost surely, 2^100421212430 is an apocalyptic number.

100421212430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100421212430 is an abundant number, since it is smaller than the sum of its proper divisors (139152993010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100421212430 is a wasteful number, since it uses less digits than its factorization.

100421212430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68106.

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

Adding to 100421212430 its reverse (34212124001), we get a palindrome (134633336431).

The spelling of 100421212430 in words is "one hundred billion, four hundred twenty-one million, two hundred twelve thousand, four hundred thirty".