121672221714 has 80 divisors (see below), whose sum is σ = 277452806400. Its totient is φ = 39841821216.

The previous prime is 121672221709. The next prime is 121672221719. The reversal of 121672221714 is 417122276121.

It is an interprime number because it is at equal distance from previous prime (121672221709) and next prime (121672221719).

It is not an unprimeable number, because it can be changed into a prime (121672221719) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16808904 + ... + 16816140.

It is an arithmetic number, because the mean of its divisors is an integer number (3468160080).

Almost surely, 2^121672221714 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121672221714, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138726403200).

121672221714 is an abundant number, since it is smaller than the sum of its proper divisors (155780584686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121672221714 is a wasteful number, since it uses less digits than its factorization.

121672221714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9069 (or 9060 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

Adding to 121672221714 its reverse (417122276121), we get a palindrome (538794497835).

The spelling of 121672221714 in words is "one hundred twenty-one billion, six hundred seventy-two million, two hundred twenty-one thousand, seven hundred fourteen".