422311234221 has 20 divisors (see below), whose sum is σ = 630881512800. Its totient is φ = 281531218536.

The previous prime is 422311234181. The next prime is 422311234337. The reversal of 422311234221 is 122432113224.

422311234221 is a `hidden beast` number, since 4 + 2 + 2 + 311 + 2 + 342 + 2 + 1 = 666.

It is not a de Polignac number, because 422311234221 - 2⁶ = 422311234157 is a prime.

It is a super-3 number, since 3×422311234221³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422311234921) 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 19 ways as a sum of consecutive naturals, for example, 2928120 + ... + 3068958.

It is an arithmetic number, because the mean of its divisors is an integer number (31544075640).

Almost surely, 2^422311234221 is an apocalyptic number.

It is an amenable number.

422311234221 is a deficient number, since it is larger than the sum of its proper divisors (208570278579).

422311234221 is a wasteful number, since it uses less digits than its factorization.

422311234221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177870 (or 177861 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 422311234221 its reverse (122432113224), we get a palindrome (544743347445).

The spelling of 422311234221 in words is "four hundred twenty-two billion, three hundred eleven million, two hundred thirty-four thousand, two hundred twenty-one".