21632214630026 has 96 divisors (see below), whose sum is σ = 43992272548224. Its totient is φ = 7762937846400.

The previous prime is 21632214630001. The next prime is 21632214630029. The reversal of 21632214630026 is 62003641223612.

It is not an unprimeable number, because it can be changed into a prime (21632214630029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9086741 + ... + 11217543.

It is an arithmetic number, because the mean of its divisors is an integer number (458252839044).

Almost surely, 2^{21632214630026} is an apocalyptic number.

21632214630026 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

21632214630026 is an abundant number, since it is smaller than the sum of its proper divisors (22360057918198).

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

21632214630026 is a wasteful number, since it uses less digits than its factorization.

21632214630026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131308 (or 2131297 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

Adding to 21632214630026 its reverse (62003641223612), we get a palindrome (83635855853638).

The spelling of 21632214630026 in words is "twenty-one trillion, six hundred thirty-two billion, two hundred fourteen million, six hundred thirty thousand, twenty-six".