21194285601232 has 40 divisors (see below), whose sum is σ = 42165883085760. Its totient is φ = 10314001125120.

The previous prime is 21194285601161. The next prime is 21194285601233. The reversal of 21194285601232 is 23210658249112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21194285601233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38279268 + ... + 38828995.

It is an arithmetic number, because the mean of its divisors is an integer number (1054147077144).

Almost surely, 2^{21194285601232} is an apocalyptic number.

It is an amenable number.

21194285601232 is a deficient number, since it is larger than the sum of its proper divisors (20971597484528).

21194285601232 is a wasteful number, since it uses less digits than its factorization.

21194285601232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77108731 (or 77108725 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 21194285601232 in words is "twenty-one trillion, one hundred ninety-four billion, two hundred eighty-five million, six hundred one thousand, two hundred thirty-two".