12212112021001 has 24 divisors (see below), whose sum is σ = 12814345571040. Its totient is φ = 11636192582784.

The previous prime is 12212112020989. The next prime is 12212112021017. The reversal of 12212112021001 is 10012021121221.

It is not a de Polignac number, because 12212112021001 - 2¹⁹ = 12212111496713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212112022001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38990046 + ... + 39302008.

It is an arithmetic number, because the mean of its divisors is an integer number (533931065460).

Almost surely, 2^{12212112021001} is an apocalyptic number.

It is an amenable number.

12212112021001 is a deficient number, since it is larger than the sum of its proper divisors (602233550039).

12212112021001 is an equidigital number, since it uses as much as digits as its factorization.

12212112021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312633 (or 312604 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12212112021001 its reverse (10012021121221), we get a palindrome (22224133142222).

The spelling of 12212112021001 in words is "twelve trillion, two hundred twelve billion, one hundred twelve million, twenty-one thousand, one".