122640121046221 has 8 divisors (see below), whose sum is σ = 133546411303200. Its totient is φ = 112178985493680.

The previous prime is 122640121046171. The next prime is 122640121046239.

122640121046221 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 122640121046221 - 2¹¹ = 122640121044173 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 (122640121046281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111288675535 + ... + 111288676636.

It is an arithmetic number, because the mean of its divisors is an integer number (16693301412900).

Almost surely, 2^{122640121046221} is an apocalyptic number.

It is an amenable number.

122640121046221 is a deficient number, since it is larger than the sum of its proper divisors (10906290256979).

122640121046221 is a wasteful number, since it uses less digits than its factorization.

122640121046221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222577352219.

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 122640121046221 in words is "one hundred twenty-two trillion, six hundred forty billion, one hundred twenty-one million, forty-six thousand, two hundred twenty-one".