122116643 has 8 divisors (see below), whose sum is σ = 134178240. Its totient is φ = 110215080.

The previous prime is 122116619. The next prime is 122116649. The reversal of 122116643 is 346611221.

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

It is a cyclic number.

It is not a de Polignac number, because 122116643 - 2¹⁶ = 122051107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122116649) 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, 38405 + ... + 41462.

It is an arithmetic number, because the mean of its divisors is an integer number (16772280).

Almost surely, 2^122116643 is an apocalyptic number.

122116643 is a deficient number, since it is larger than the sum of its proper divisors (12061597).

122116643 is a wasteful number, since it uses less digits than its factorization.

122116643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80017.

The product of its digits is 1728, while the sum is 26.

The square root of 122116643 is about 11050.6399362209. The cubic root of 122116643 is about 496.1255792740.

Adding to 122116643 its reverse (346611221), we get a palindrome (468727864).

The spelling of 122116643 in words is "one hundred twenty-two million, one hundred sixteen thousand, six hundred forty-three".