12121212100002 has 16 divisors (see below), whose sum is σ = 24639840990912. Its totient is φ = 3974167901520.

The previous prime is 12121212099967. The next prime is 12121212100009. The reversal of 12121212100002 is 20000121212121.

It is not an unprimeable number, because it can be changed into a prime (12121212100009) 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, 16559032558 + ... + 16559033289.

It is an arithmetic number, because the mean of its divisors is an integer number (1539990061932).

Almost surely, 2^{12121212100002} is an apocalyptic number.

12121212100002 is an abundant number, since it is smaller than the sum of its proper divisors (12518628890910).

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

12121212100002 is a wasteful number, since it uses less digits than its factorization.

12121212100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33118065913.

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

Adding to 12121212100002 its reverse (20000121212121), we get a palindrome (32121333312123).

The spelling of 12121212100002 in words is "twelve trillion, one hundred twenty-one billion, two hundred twelve million, one hundred thousand, two".