21432210401120 has 72 divisors (see below), whose sum is σ = 52039059027984. Its totient is φ = 8341184503296.

The previous prime is 21432210401111. The next prime is 21432210401149. The reversal of 21432210401120 is 2110401223412.

It is a super-2 number, since 2×21432210401120² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48704012 + ... + 49142091.

It is an arithmetic number, because the mean of its divisors is an integer number (722764708722).

Almost surely, 2^{21432210401120} is an apocalyptic number.

21432210401120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21432210401120 is an abundant number, since it is smaller than the sum of its proper divisors (30606848626864).

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

21432210401120 is an equidigital number, since it uses as much as digits as its factorization.

21432210401120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97846192 (or 97846147 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 21432210401120 its reverse (2110401223412), we get a palindrome (23542611624532).

The spelling of 21432210401120 in words is "twenty-one trillion, four hundred thirty-two billion, two hundred ten million, four hundred one thousand, one hundred twenty".