421202400211242 has 48 divisors (see below), whose sum is σ = 983709746073600. Its totient is φ = 129481510538016.

The previous prime is 421202400211217. The next prime is 421202400211259. The reversal of 421202400211242 is 242112004202124.

421202400211242 is a `hidden beast` number, since 4 + 2 + 1 + 2 + 0 + 2 + 400 + 2 + 11 + 242 = 666.

It is a super-2 number, since 2×421202400211242² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 827717242 + ... + 828225957.

It is an arithmetic number, because the mean of its divisors is an integer number (20493953043200).

Almost surely, 2^{421202400211242} is an apocalyptic number.

421202400211242 is an abundant number, since it is smaller than the sum of its proper divisors (562507345862358).

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

421202400211242 is a wasteful number, since it uses less digits than its factorization.

421202400211242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655944307 (or 1655944304 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 421202400211242 its reverse (242112004202124), we get a palindrome (663314404413366).

The spelling of 421202400211242 in words is "four hundred twenty-one trillion, two hundred two billion, four hundred million, two hundred eleven thousand, two hundred forty-two".