122110866566 has 16 divisors (see below), whose sum is σ = 207637911600. Its totient is φ = 53392605408.

The previous prime is 122110866529. The next prime is 122110866569. The reversal of 122110866566 is 665668011221.

It is a super-2 number, since 2×122110866566² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122110866569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123593501 + ... + 123594488.

It is an arithmetic number, because the mean of its divisors is an integer number (12977369475).

Almost surely, 2^122110866566 is an apocalyptic number.

122110866566 is a deficient number, since it is larger than the sum of its proper divisors (85527045034).

122110866566 is a wasteful number, since it uses less digits than its factorization.

122110866566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247188023.

The product of its (nonzero) digits is 207360, while the sum is 44.

Adding to 122110866566 its reverse (665668011221), we get a palindrome (787778877787).

The spelling of 122110866566 in words is "one hundred twenty-two billion, one hundred ten million, eight hundred sixty-six thousand, five hundred sixty-six".