21234662232 has 256 divisors, whose sum is σ = 65020354560. Its totient is φ = 5648569344.

The previous prime is 21234662227. The next prime is 21234662299. The reversal of 21234662232 is 23226643212.

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

It is a junction number, because it is equal to n+sod(n) for n = 21234662193 and 21234662202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23411523 + ... + 23412429.

It is an arithmetic number, because the mean of its divisors is an integer number (253985760).

Almost surely, 2^21234662232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21234662232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32510177280).

21234662232 is an abundant number, since it is smaller than the sum of its proper divisors (43785692328).

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

21234662232 is a wasteful number, since it uses less digits than its factorization.

21234662232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102 (or 1098 counting only the distinct ones).

The product of its digits is 41472, while the sum is 33.

The spelling of 21234662232 in words is "twenty-one billion, two hundred thirty-four million, six hundred sixty-two thousand, two hundred thirty-two".