12122112020021 has 8 divisors (see below), whose sum is σ = 12480174168000. Its totient is φ = 11767021342560.

The previous prime is 12122112019999. The next prime is 12122112020071. The reversal of 12122112020021 is 12002021122121.

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 12122112020021 - 2⁶ = 12122112019957 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 (12122112020071) 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, 742859351 + ... + 742875668.

It is an arithmetic number, because the mean of its divisors is an integer number (1560021771000).

Almost surely, 2^{12122112020021} is an apocalyptic number.

It is an amenable number.

12122112020021 is a deficient number, since it is larger than the sum of its proper divisors (358062147979).

12122112020021 is a wasteful number, since it uses less digits than its factorization.

12122112020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485735259.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12122112020021 its reverse (12002021122121), we get a palindrome (24124133142142).

The spelling of 12122112020021 in words is "twelve trillion, one hundred twenty-two billion, one hundred twelve million, twenty thousand, twenty-one".