122643201432 has 64 divisors (see below), whose sum is σ = 309921384960. Its totient is φ = 40441536000.

The previous prime is 122643201413. The next prime is 122643201433. The reversal of 122643201432 is 234102346221.

It is a self number, because there is not a number n which added to its sum of digits gives 122643201432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122643201433) 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 15 ways as a sum of consecutive naturals, for example, 803173 + ... + 943595.

It is an arithmetic number, because the mean of its divisors is an integer number (4842521640).

Almost surely, 2^122643201432 is an apocalyptic number.

122643201432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122643201432 is an abundant number, since it is smaller than the sum of its proper divisors (187278183528).

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

122643201432 is a wasteful number, since it uses less digits than its factorization.

122643201432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140824 (or 140820 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 122643201432 its reverse (234102346221), we get a palindrome (356745547653).

The spelling of 122643201432 in words is "one hundred twenty-two billion, six hundred forty-three million, two hundred one thousand, four hundred thirty-two".