221457135545303 has 8 divisors (see below), whose sum is σ = 253093969860480. Its totient is φ = 189820326396600.

The previous prime is 221457135545209. The next prime is 221457135545339. The reversal of 221457135545303 is 303545531754122.

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

It is a cyclic number.

It is not a de Polignac number, because 221457135545303 - 2¹² = 221457135541207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221457135542303) 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, 19751768 + ... + 28862546.

It is an arithmetic number, because the mean of its divisors is an integer number (31636746232560).

Almost surely, 2^{221457135545303} is an apocalyptic number.

221457135545303 is a deficient number, since it is larger than the sum of its proper divisors (31636834315177).

221457135545303 is an equidigital number, since it uses as much as digits as its factorization.

221457135545303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12583237.

The product of its (nonzero) digits is 7560000, while the sum is 50.

The spelling of 221457135545303 in words is "two hundred twenty-one trillion, four hundred fifty-seven billion, one hundred thirty-five million, five hundred forty-five thousand, three hundred three".