221452115747341 has 4 divisors (see below), whose sum is σ = 228595732384384. Its totient is φ = 214308499110300.

The previous prime is 221452115747329. The next prime is 221452115747491. The reversal of 221452115747341 is 143747511254122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221452115747341 - 2²³ = 221452107358733 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 (221452115747321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3571808318475 + ... + 3571808318536.

It is an arithmetic number, because the mean of its divisors is an integer number (57148933096096).

Almost surely, 2^{221452115747341} is an apocalyptic number.

It is an amenable number.

221452115747341 is a deficient number, since it is larger than the sum of its proper divisors (7143616637043).

221452115747341 is an equidigital number, since it uses as much as digits as its factorization.

221452115747341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7143616637042.

The product of its digits is 1881600, while the sum is 49.

The spelling of 221452115747341 in words is "two hundred twenty-one trillion, four hundred fifty-two billion, one hundred fifteen million, seven hundred forty-seven thousand, three hundred forty-one".