12002121221002 has 16 divisors (see below), whose sum is σ = 19860507028800. Its totient is φ = 5394211783840.

The previous prime is 12002121220979. The next prime is 12002121221003. The reversal of 12002121221002 is 20012212120021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12002121221003) 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, 3064891102 + ... + 3064895017.

It is an arithmetic number, because the mean of its divisors is an integer number (1241281689300).

Almost surely, 2^{12002121221002} is an apocalyptic number.

12002121221002 is a deficient number, since it is larger than the sum of its proper divisors (7858385807798).

12002121221002 is a wasteful number, since it uses less digits than its factorization.

12002121221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6129786221.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12002121221002 its reverse (20012212120021), we get a palindrome (32014333341023).

The spelling of 12002121221002 in words is "twelve trillion, two billion, one hundred twenty-one million, two hundred twenty-one thousand, two".