2122012112021 has 8 divisors (see below), whose sum is σ = 2195215603200. Its totient is φ = 2048810664880.

The previous prime is 2122012112009. The next prime is 2122012112039. The reversal of 2122012112021 is 1202112102212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122012112021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122012112821) 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, 1774400 + ... + 2718918.

It is an arithmetic number, because the mean of its divisors is an integer number (274401950400).

Almost surely, 2^{2122012112021} is an apocalyptic number.

It is an amenable number.

2122012112021 is a deficient number, since it is larger than the sum of its proper divisors (73203491179).

2122012112021 is an equidigital number, since it uses as much as digits as its factorization.

2122012112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022019.

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

Adding to 2122012112021 its reverse (1202112102212), we get a palindrome (3324124214233).

The spelling of 2122012112021 in words is "two trillion, one hundred twenty-two billion, twelve million, one hundred twelve thousand, twenty-one".