12111201121002 has 32 divisors (see below), whose sum is σ = 24241112832384. Its totient is φ = 4033949568000.

The previous prime is 12111201120979. The next prime is 12111201121003. The reversal of 12111201121002 is 20012110211121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12111201121003) 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, 51818002 + ... + 52051202.

It is an arithmetic number, because the mean of its divisors is an integer number (757534776012).

Almost surely, 2^{12111201121002} is an apocalyptic number.

12111201121002 is an abundant number, since it is smaller than the sum of its proper divisors (12129911711382).

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

12111201121002 is a wasteful number, since it uses less digits than its factorization.

12111201121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239854.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12111201121002 its reverse (20012110211121), we get a palindrome (32123311332123).

The spelling of 12111201121002 in words is "twelve trillion, one hundred eleven billion, two hundred one million, one hundred twenty-one thousand, two".