120021474447 has 24 divisors (see below), whose sum is σ = 198173880320. Its totient is φ = 68568748560.

The previous prime is 120021474437. The next prime is 120021474467. The reversal of 120021474447 is 744474120021.

120021474447 is a `hidden beast` number, since 1 + 200 + 2 + 1 + 4 + 7 + 4 + 447 = 666.

It is not a de Polignac number, because 120021474447 - 2⁴ = 120021474431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021474407) 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 23 ways as a sum of consecutive naturals, for example, 86922 + ... + 497592.

Almost surely, 2^120021474447 is an apocalyptic number.

120021474447 is a deficient number, since it is larger than the sum of its proper divisors (78152405873).

120021474447 is a wasteful number, since it uses less digits than its factorization.

120021474447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415323 (or 415320 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

Adding to 120021474447 its reverse (744474120021), we get a palindrome (864495594468).

The spelling of 120021474447 in words is "one hundred twenty billion, twenty-one million, four hundred seventy-four thousand, four hundred forty-seven".