217536440146222 has 8 divisors (see below), whose sum is σ = 340491819359376. Its totient is φ = 104039167026432.

The previous prime is 217536440146117. The next prime is 217536440146229. The reversal of 217536440146222 is 222641044635712.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217536440146229) 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, 2364526523283 + ... + 2364526523374.

It is an arithmetic number, because the mean of its divisors is an integer number (42561477419922).

Almost surely, 2^{217536440146222} is an apocalyptic number.

217536440146222 is a deficient number, since it is larger than the sum of its proper divisors (122955379213154).

217536440146222 is a wasteful number, since it uses less digits than its factorization.

217536440146222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4729053046682.

The product of its (nonzero) digits is 3870720, while the sum is 49.

The spelling of 217536440146222 in words is "two hundred seventeen trillion, five hundred thirty-six billion, four hundred forty million, one hundred forty-six thousand, two hundred twenty-two".