122167171716721 has 16 divisors (see below), whose sum is σ = 126637172928000. Its totient is φ = 117730659715200.

The previous prime is 122167171716683. The next prime is 122167171716803. The reversal of 122167171716721 is 127617171761221.

It is a cyclic number.

It is not a de Polignac number, because 122167171716721 - 2¹³ = 122167171708529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122167171713721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14013781 + ... + 20993341.

It is an arithmetic number, because the mean of its divisors is an integer number (7914823308000).

Almost surely, 2^{122167171716721} is an apocalyptic number.

It is an amenable number.

122167171716721 is a deficient number, since it is larger than the sum of its proper divisors (4470001211279).

122167171716721 is a wasteful number, since it uses less digits than its factorization.

122167171716721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6981960.

The product of its digits is 691488, while the sum is 52.

The spelling of 122167171716721 in words is "one hundred twenty-two trillion, one hundred sixty-seven billion, one hundred seventy-one million, seven hundred sixteen thousand, seven hundred twenty-one".