21432233223412 has 24 divisors (see below), whose sum is σ = 40916302967232. Its totient is φ = 9741871488000.

The previous prime is 21432233223407. The next prime is 21432233223421.

It is a happy number.

21432233223412 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7583412 + ... + 10018612.

It is an arithmetic number, because the mean of its divisors is an integer number (1704845956968).

Almost surely, 2^{21432233223412} is an apocalyptic number.

21432233223412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21432233223412 is a deficient number, since it is larger than the sum of its proper divisors (19484069743820).

21432233223412 is a wasteful number, since it uses less digits than its factorization.

21432233223412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635239 (or 2635237 counting only the distinct ones).

The product of its digits is 82944, while the sum is 34.

It can be divided in two parts, 2143223 and 3223412, that added together give a palindrome (5366635).

The spelling of 21432233223412 in words is "twenty-one trillion, four hundred thirty-two billion, two hundred thirty-three million, two hundred twenty-three thousand, four hundred twelve".