217220130150 has 48 divisors (see below), whose sum is σ = 538787640384. Its totient is φ = 57916581280.

The previous prime is 217220130107. The next prime is 217220130161. The reversal of 217220130150 is 51031022712.

It is a self number, because there is not a number n which added to its sum of digits gives 217220130150.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 914017 + ... + 1126883.

It is an arithmetic number, because the mean of its divisors is an integer number (11224742508).

Almost surely, 2^217220130150 is an apocalyptic number.

217220130150 is an abundant number, since it is smaller than the sum of its proper divisors (321567510234).

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

217220130150 is a wasteful number, since it uses less digits than its factorization.

217220130150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219685 (or 219680 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

Adding to 217220130150 its reverse (51031022712), we get a palindrome (268251152862).

The spelling of 217220130150 in words is "two hundred seventeen billion, two hundred twenty million, one hundred thirty thousand, one hundred fifty".