421224422100 has 36 divisors (see below), whose sum is σ = 1218742662144. Its totient is φ = 112326512480.

The previous prime is 421224422083. The next prime is 421224422119. The reversal of 421224422100 is 1224422124.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 702040404 + ... + 702041003.

Almost surely, 2^421224422100 is an apocalyptic number.

It is an amenable number.

421224422100 is an abundant number, since it is smaller than the sum of its proper divisors (797518240044).

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

421224422100 is a wasteful number, since it uses less digits than its factorization.

421224422100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404081424 (or 1404081417 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 421224422100 its sum of digits (24), we get a palindrome (421224422124).

Adding to 421224422100 its reverse (1224422124), we get a palindrome (422448844224).

The spelling of 421224422100 in words is "four hundred twenty-one billion, two hundred twenty-four million, four hundred twenty-two thousand, one hundred".