121526464004421 has 8 divisors (see below), whose sum is σ = 185183183244864. Its totient is φ = 69443693716800.

The previous prime is 121526464004357. The next prime is 121526464004467. The reversal of 121526464004421 is 124400464625121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121526464004421 - 2⁶ = 121526464004357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121526464002421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2893487238180 + ... + 2893487238221.

It is an arithmetic number, because the mean of its divisors is an integer number (23147897905608).

Almost surely, 2^{121526464004421} is an apocalyptic number.

It is an amenable number.

121526464004421 is a deficient number, since it is larger than the sum of its proper divisors (63656719240443).

121526464004421 is an equidigital number, since it uses as much as digits as its factorization.

121526464004421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5786974476411.

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 121526464004421 in words is "one hundred twenty-one trillion, five hundred twenty-six billion, four hundred sixty-four million, four thousand, four hundred twenty-one".