122216506 has 8 divisors (see below), whose sum is σ = 184947444. Its totient is φ = 60567360.

The previous prime is 122216483. The next prime is 122216533. The reversal of 122216506 is 605612221.

It can be written as a sum of positive squares in 2 ways, for example, as 122213025 + 3481 = 11055^2 + 59^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270165 + ... + 270616.

Almost surely, 2^122216506 is an apocalyptic number.

122216506 is a deficient number, since it is larger than the sum of its proper divisors (62730938).

122216506 is a wasteful number, since it uses less digits than its factorization.

122216506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540896.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 122216506 is about 11055.1574389513. The cubic root of 122216506 is about 496.2607808549.

Adding to 122216506 its reverse (605612221), we get a palindrome (727828727).

The spelling of 122216506 in words is "one hundred twenty-two million, two hundred sixteen thousand, five hundred six".