122216216 has 8 divisors (see below), whose sum is σ = 229155420. Its totient is φ = 61108104.

The previous prime is 122216201. The next prime is 122216219. The reversal of 122216216 is 612612221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 122216191 and 122216200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122216219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7638506 + ... + 7638521.

Almost surely, 2^122216216 is an apocalyptic number.

It is an amenable number.

122216216 is a deficient number, since it is larger than the sum of its proper divisors (106939204).

122216216 is a wasteful number, since it uses less digits than its factorization.

122216216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15277033 (or 15277029 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 122216216 is about 11055.1443228933. The cubic root of 122216216 is about 496.2603883390.

Adding to 122216216 its reverse (612612221), we get a palindrome (734828437).

The spelling of 122216216 in words is "one hundred twenty-two million, two hundred sixteen thousand, two hundred sixteen".