21132441112240 has 40 divisors (see below), whose sum is σ = 49134734291808. Its totient is φ = 8452665269760.

The previous prime is 21132441112199. The next prime is 21132441112243. The reversal of 21132441112240 is 4221114423112.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 21132441112199 and 21132441112208.

It is not an unprimeable number, because it can be changed into a prime (21132441112243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2669212 + ... + 7027771.

Almost surely, 2^{21132441112240} is an apocalyptic number.

21132441112240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21132441112240 is an abundant number, since it is smaller than the sum of its proper divisors (28002293179568).

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

21132441112240 is a wasteful number, since it uses less digits than its factorization.

21132441112240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9724237 (or 9724231 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 21132441112240 its reverse (4221114423112), we get a palindrome (25353555535352).

The spelling of 21132441112240 in words is "twenty-one trillion, one hundred thirty-two billion, four hundred forty-one million, one hundred twelve thousand, two hundred forty".