12021001212001 has 16 divisors (see below), whose sum is σ = 12845854644480. Its totient is φ = 11209245108480.

The previous prime is 12021001211981. The next prime is 12021001212083. The reversal of 12021001212001 is 10021210012021.

12021001212001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12021001212001 - 2⁵ = 12021001211969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021001212091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25169910 + ... + 25643056.

It is an arithmetic number, because the mean of its divisors is an integer number (802865915280).

Almost surely, 2^{12021001212001} is an apocalyptic number.

It is an amenable number.

12021001212001 is a deficient number, since it is larger than the sum of its proper divisors (824853432479).

12021001212001 is a wasteful number, since it uses less digits than its factorization.

12021001212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486984.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12021001212001 its reverse (10021210012021), we get a palindrome (22042211224022).

The spelling of 12021001212001 in words is "twelve trillion, twenty-one billion, one million, two hundred twelve thousand, one".