121722367 has 8 divisors (see below), whose sum is σ = 135606240. Its totient is φ = 108484320.

The previous prime is 121722361. The next prime is 121722373. The reversal of 121722367 is 763227121.

It is an interprime number because it is at equal distance from previous prime (121722361) and next prime (121722373).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121722367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121722361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161059 + ... + 161812.

It is an arithmetic number, because the mean of its divisors is an integer number (16950780).

Almost surely, 2^121722367 is an apocalyptic number.

121722367 is a deficient number, since it is larger than the sum of its proper divisors (13883873).

121722367 is a wasteful number, since it uses less digits than its factorization.

121722367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322913.

The product of its digits is 7056, while the sum is 31.

The square root of 121722367 is about 11032.7860035442. The cubic root of 121722367 is about 495.5910594251.

Adding to 121722367 its reverse (763227121), we get a palindrome (884949488).

The spelling of 121722367 in words is "one hundred twenty-one million, seven hundred twenty-two thousand, three hundred sixty-seven".