121665711022 has 8 divisors (see below), whose sum is σ = 182636097696. Its totient is φ = 60787011792.

The previous prime is 121665711019. The next prime is 121665711023. The reversal of 121665711022 is 220117566121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121665711023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22918543 + ... + 22923850.

It is an arithmetic number, because the mean of its divisors is an integer number (22829512212).

Almost surely, 2^121665711022 is an apocalyptic number.

121665711022 is a deficient number, since it is larger than the sum of its proper divisors (60970386674).

121665711022 is a wasteful number, since it uses less digits than its factorization.

121665711022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45843722.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 121665711022 in words is "one hundred twenty-one billion, six hundred sixty-five million, seven hundred eleven thousand, twenty-two".