2012012222121 has 48 divisors (see below), whose sum is σ = 3234470279040. Its totient is φ = 1194835599360.

The previous prime is 2012012222117. The next prime is 2012012222123. The reversal of 2012012222121 is 1212222102102.

It is a happy number.

2012012222121 is a `hidden beast` number, since 201 + 201 + 22 + 221 + 21 = 666.

It is not a de Polignac number, because 2012012222121 - 2² = 2012012222117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012012222094 and 2012012222103.

It is not an unprimeable number, because it can be changed into a prime (2012012222123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3785620 + ... + 4284266.

It is an arithmetic number, because the mean of its divisors is an integer number (67384797480).

Almost surely, 2^{2012012222121} is an apocalyptic number.

It is an amenable number.

2012012222121 is a deficient number, since it is larger than the sum of its proper divisors (1222458056919).

2012012222121 is a wasteful number, since it uses less digits than its factorization.

2012012222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499486 (or 499483 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2012012222121 its reverse (1212222102102), we get a palindrome (3224234324223).

The spelling of 2012012222121 in words is "two trillion, twelve billion, twelve million, two hundred twenty-two thousand, one hundred twenty-one".