21450410322132 has 48 divisors (see below), whose sum is σ = 54601466673600. Its totient is φ = 6500074076160.

The previous prime is 21450410322113. The next prime is 21450410322151. The reversal of 21450410322132 is 23122301405412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21450410322113) and next prime (21450410322151).

It is a self number, because there is not a number n which added to its sum of digits gives 21450410322132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18765594 + ... + 19875822.

It is an arithmetic number, because the mean of its divisors is an integer number (1137530555700).

Almost surely, 2^{21450410322132} is an apocalyptic number.

21450410322132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21450410322132 is an abundant number, since it is smaller than the sum of its proper divisors (33151056351468).

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

21450410322132 is a wasteful number, since it uses less digits than its factorization.

21450410322132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256616 (or 1256614 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 21450410322132 its reverse (23122301405412), we get a palindrome (44572711727544).

The spelling of 21450410322132 in words is "twenty-one trillion, four hundred fifty billion, four hundred ten million, three hundred twenty-two thousand, one hundred thirty-two".