12291420191424 has 112 divisors (see below), whose sum is σ = 35478889810176. Its totient is φ = 3724527744000.

The previous prime is 12291420191389. The next prime is 12291420191473. The reversal of 12291420191424 is 42419102419221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62262474 + ... + 62459574.

Almost surely, 2^{12291420191424} is an apocalyptic number.

It is an amenable number.

12291420191424 is an abundant number, since it is smaller than the sum of its proper divisors (23187469618752).

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

12291420191424 is a wasteful number, since it uses less digits than its factorization.

12291420191424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226654 (or 226644 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 12291420191424 in words is "twelve trillion, two hundred ninety-one billion, four hundred twenty million, one hundred ninety-one thousand, four hundred twenty-four".