221250065357297 has 8 divisors (see below), whose sum is σ = 232928939559360. Its totient is φ = 209574604547280.

The previous prime is 221250065357287. The next prime is 221250065357303. The reversal of 221250065357297 is 792753560052122.

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 221250065357297 - 2¹⁸ = 221250065095153 is a prime.

It is a super-2 number, since 2×221250065357297² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221250065357257) 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, 853214954 + ... + 853474227.

It is an arithmetic number, because the mean of its divisors is an integer number (29116117444920).

Almost surely, 2^{221250065357297} is an apocalyptic number.

It is an amenable number.

221250065357297 is a deficient number, since it is larger than the sum of its proper divisors (11678874202063).

221250065357297 is a wasteful number, since it uses less digits than its factorization.

221250065357297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706696023.

The product of its (nonzero) digits is 15876000, while the sum is 56.

The spelling of 221250065357297 in words is "two hundred twenty-one trillion, two hundred fifty billion, sixty-five million, three hundred fifty-seven thousand, two hundred ninety-seven".