12021101221002 has 48 divisors (see below), whose sum is σ = 24845778485280. Its totient is φ = 3877305809760.

The previous prime is 12021101221001. The next prime is 12021101221007. The reversal of 12021101221002 is 20012210112021.

It is not an unprimeable number, because it can be changed into a prime (12021101221001) 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, 49252524 + ... + 49495992.

It is an arithmetic number, because the mean of its divisors is an integer number (517620385110).

Almost surely, 2^{12021101221002} is an apocalyptic number.

12021101221002 is an abundant number, since it is smaller than the sum of its proper divisors (12824677264278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12021101221002 is a wasteful number, since it uses less digits than its factorization.

12021101221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252099 (or 252068 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12021101221002 its reverse (20012210112021), we get a palindrome (32033311333023).

The spelling of 12021101221002 in words is "twelve trillion, twenty-one billion, one hundred one million, two hundred twenty-one thousand, two".