221412065547353 has 4 divisors (see below), whose sum is σ = 221412638796708. Its totient is φ = 221411492298000.

The previous prime is 221412065547317. The next prime is 221412065547367. The reversal of 221412065547353 is 353745560214122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16008937247689 + 205403128299664 = 4001117^2 + 14331892^2 .

It is a cyclic number.

It is not a de Polignac number, because 221412065547353 - 2²⁶ = 221411998438489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221412065547553) 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, 286044926 + ... + 286817927.

It is an arithmetic number, because the mean of its divisors is an integer number (55353159699177).

Almost surely, 2^{221412065547353} is an apocalyptic number.

It is an amenable number.

221412065547353 is a deficient number, since it is larger than the sum of its proper divisors (573249355).

221412065547353 is an equidigital number, since it uses as much as digits as its factorization.

221412065547353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573249354.

The product of its (nonzero) digits is 6048000, while the sum is 50.

The spelling of 221412065547353 in words is "two hundred twenty-one trillion, four hundred twelve billion, sixty-five million, five hundred forty-seven thousand, three hundred fifty-three".