221431463645254 has 8 divisors (see below), whose sum is σ = 346588377879600. Its totient is φ = 105902004352056.

The previous prime is 221431463645243. The next prime is 221431463645267. The reversal of 221431463645254 is 452546364134122.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2406863735229 + ... + 2406863735320.

It is an arithmetic number, because the mean of its divisors is an integer number (43323547234950).

Almost surely, 2^{221431463645254} is an apocalyptic number.

221431463645254 is a deficient number, since it is larger than the sum of its proper divisors (125156914234346).

221431463645254 is a wasteful number, since it uses less digits than its factorization.

221431463645254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4813727470574.

The product of its digits is 16588800, while the sum is 52.

The spelling of 221431463645254 in words is "two hundred twenty-one trillion, four hundred thirty-one billion, four hundred sixty-three million, six hundred forty-five thousand, two hundred fifty-four".