421333340212 has 24 divisors (see below), whose sum is σ = 761264501760. Its totient is φ = 203910114240.

The previous prime is 421333340177. The next prime is 421333340213. The reversal of 421333340212 is 212043333124.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421333340213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10093762 + ... + 10135417.

It is an arithmetic number, because the mean of its divisors is an integer number (31719354240).

Almost surely, 2^421333340212 is an apocalyptic number.

It is an amenable number.

421333340212 is a deficient number, since it is larger than the sum of its proper divisors (339931161548).

421333340212 is a wasteful number, since it uses less digits than its factorization.

421333340212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20229351 (or 20229349 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 421333340212 its reverse (212043333124), we get a palindrome (633376673336).

The spelling of 421333340212 in words is "four hundred twenty-one billion, three hundred thirty-three million, three hundred forty thousand, two hundred twelve".