216517022 has 4 divisors (see below), whose sum is σ = 324775536. Its totient is φ = 108258510.

The previous prime is 216517013. The next prime is 216517039. The reversal of 216517022 is 220715612.

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

It is a junction number, because it is equal to n+sod(n) for n = 216516982 and 216517000.

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 as a sum of consecutive naturals, namely, 54129254 + ... + 54129257.

It is an arithmetic number, because the mean of its divisors is an integer number (81193884).

Almost surely, 2^216517022 is an apocalyptic number.

216517022 is a deficient number, since it is larger than the sum of its proper divisors (108258514).

216517022 is a wasteful number, since it uses less digits than its factorization.

216517022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108258513.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 216517022 is about 14714.5173892996. The cubic root of 216517022 is about 600.4783426200.

The spelling of 216517022 in words is "two hundred sixteen million, five hundred seventeen thousand, twenty-two".