122943548521 has 8 divisors (see below), whose sum is σ = 123031872000. Its totient is φ = 122855261760.

The previous prime is 122943548491. The next prime is 122943548573. The reversal of 122943548521 is 125845349221.

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 122943548521 - 2⁹ = 122943548009 is a prime.

It is a super-2 number, since 2×122943548521² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122943548921) 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, 10485100 + ... + 10496818.

It is an arithmetic number, because the mean of its divisors is an integer number (15378984000).

Almost surely, 2^122943548521 is an apocalyptic number.

It is an amenable number.

122943548521 is a deficient number, since it is larger than the sum of its proper divisors (88323479).

122943548521 is a wasteful number, since it uses less digits than its factorization.

122943548521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18359.

The product of its digits is 691200, while the sum is 46.

The spelling of 122943548521 in words is "one hundred twenty-two billion, nine hundred forty-three million, five hundred forty-eight thousand, five hundred twenty-one".