122002023121 has 8 divisors (see below), whose sum is σ = 133095816000. Its totient is φ = 110908680240.

The previous prime is 122002023097. The next prime is 122002023151. The reversal of 122002023121 is 121320200221.

It is a happy number.

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 122002023121 - 2²¹ = 121999925969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122002023095 and 122002023104.

It is not an unprimeable number, because it can be changed into a prime (122002023151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 726420 + ... + 878458.

It is an arithmetic number, because the mean of its divisors is an integer number (16636977000).

Almost surely, 2^122002023121 is an apocalyptic number.

122002023121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122002023121 is a deficient number, since it is larger than the sum of its proper divisors (11093792879).

122002023121 is a wasteful number, since it uses less digits than its factorization.

122002023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224999.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 122002023121 its reverse (121320200221), we get a palindrome (243322223342).

The spelling of 122002023121 in words is "one hundred twenty-two billion, two million, twenty-three thousand, one hundred twenty-one".