421214022243 has 48 divisors (see below), whose sum is σ = 726766350336. Its totient is φ = 229849012800.

The previous prime is 421214022241. The next prime is 421214022277. The reversal of 421214022243 is 342220412124.

It is a happy number.

421214022243 is a `hidden beast` number, since 4 + 2 + 12 + 1 + 402 + 2 + 243 = 666.

It is not a de Polignac number, because 421214022243 - 2¹ = 421214022241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421214022241) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 640093 + ... + 1118993.

It is an arithmetic number, because the mean of its divisors is an integer number (15140965632).

Almost surely, 2^421214022243 is an apocalyptic number.

421214022243 is a deficient number, since it is larger than the sum of its proper divisors (305552328093).

421214022243 is a wasteful number, since it uses less digits than its factorization.

421214022243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479544 (or 479541 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 421214022243 its reverse (342220412124), we get a palindrome (763434434367).

The spelling of 421214022243 in words is "four hundred twenty-one billion, two hundred fourteen million, twenty-two thousand, two hundred forty-three".