2121201020012 has 96 divisors (see below), whose sum is σ = 4035298176000. Its totient is φ = 972451422720.

The previous prime is 2121201019921. The next prime is 2121201020023. The reversal of 2121201020012 is 2100201021212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115720064 + ... + 115738392.

It is an arithmetic number, because the mean of its divisors is an integer number (42034356000).

Almost surely, 2^{2121201020012} is an apocalyptic number.

It is an amenable number.

2121201020012 is a deficient number, since it is larger than the sum of its proper divisors (1914097155988).

2121201020012 is a wasteful number, since it uses less digits than its factorization.

2121201020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18759 (or 18757 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2121201020012 its reverse (2100201021212), we get a palindrome (4221402041224).

The spelling of 2121201020012 in words is "two trillion, one hundred twenty-one billion, two hundred one million, twenty thousand, twelve".