122169606647 has 4 divisors (see below), whose sum is σ = 133275934536. Its totient is φ = 111063278760.

The previous prime is 122169606499. The next prime is 122169606673. The reversal of 122169606647 is 746606961221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122169606647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122169606595 and 122169606604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122169606347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5553163928 + ... + 5553163949.

It is an arithmetic number, because the mean of its divisors is an integer number (33318983634).

Almost surely, 2^122169606647 is an apocalyptic number.

122169606647 is a deficient number, since it is larger than the sum of its proper divisors (11106327889).

122169606647 is a wasteful number, since it uses less digits than its factorization.

122169606647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11106327888.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 122169606647 in words is "one hundred twenty-two billion, one hundred sixty-nine million, six hundred six thousand, six hundred forty-seven".