217127224340 has 48 divisors (see below), whose sum is σ = 493982036352. Its totient is φ = 79689975936.

The previous prime is 217127224337. The next prime is 217127224351. The reversal of 217127224340 is 43422721712.

It is a self number, because there is not a number n which added to its sum of digits gives 217127224340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2456894 + ... + 2543733.

It is an arithmetic number, because the mean of its divisors is an integer number (10291292424).

Almost surely, 2^217127224340 is an apocalyptic number.

217127224340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

217127224340 is an abundant number, since it is smaller than the sum of its proper divisors (276854812012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

217127224340 is a wasteful number, since it uses less digits than its factorization.

217127224340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000816 (or 5000814 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The spelling of 217127224340 in words is "two hundred seventeen billion, one hundred twenty-seven million, two hundred twenty-four thousand, three hundred forty".