21342233412 has 36 divisors (see below), whose sum is σ = 53953675776. Its totient is φ = 7113385200.

The previous prime is 21342233411. The next prime is 21342233413. The reversal of 21342233412 is 21433224312.

21342233412 is a `hidden beast` number, since 2 + 13 + 4 + 2 + 233 + 412 = 666.

It is an interprime number because it is at equal distance from previous prime (21342233411) and next prime (21342233413).

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (21342233411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 459037 + ... + 503387.

It is an arithmetic number, because the mean of its divisors is an integer number (1498713216).

Almost surely, 2^21342233412 is an apocalyptic number.

It is an amenable number.

21342233412 is an abundant number, since it is smaller than the sum of its proper divisors (32611442364).

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

21342233412 is a wasteful number, since it uses less digits than its factorization.

21342233412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57728 (or 57723 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 21342233412 its reverse (21433224312), we get a palindrome (42775457724).

The spelling of 21342233412 in words is "twenty-one billion, three hundred forty-two million, two hundred thirty-three thousand, four hundred twelve".