2012110221121 has 32 divisors (see below), whose sum is σ = 2745862753536. Its totient is φ = 1423546272000.

The previous prime is 2012110221119. The next prime is 2012110221211. The reversal of 2012110221121 is 1211220112102.

It is a cyclic number.

It is not a de Polignac number, because 2012110221121 - 2¹ = 2012110221119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012110221095 and 2012110221104.

It is not an unprimeable number, because it can be changed into a prime (2012110221421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16415170 + ... + 16537291.

It is an arithmetic number, because the mean of its divisors is an integer number (85808211048).

Almost surely, 2^{2012110221121} is an apocalyptic number.

It is an amenable number.

2012110221121 is a deficient number, since it is larger than the sum of its proper divisors (733752532415).

2012110221121 is a wasteful number, since it uses less digits than its factorization.

2012110221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32952553.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2012110221121 its reverse (1211220112102), we get a palindrome (3223330333223).

The spelling of 2012110221121 in words is "two trillion, twelve billion, one hundred ten million, two hundred twenty-one thousand, one hundred twenty-one".