2112010121121 has 4 divisors (see below), whose sum is σ = 2816013494832. Its totient is φ = 1408006747412.

The previous prime is 2112010121101. The next prime is 2112010121131. The reversal of 2112010121121 is 1211210102112.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2112010121121 - 2¹³ = 2112010112929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2112010121121.

It is not an unprimeable number, because it can be changed into a prime (2112010121101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352001686851 + ... + 352001686856.

It is an arithmetic number, because the mean of its divisors is an integer number (704003373708).

Almost surely, 2^{2112010121121} is an apocalyptic number.

It is an amenable number.

2112010121121 is a deficient number, since it is larger than the sum of its proper divisors (704003373711).

2112010121121 is an equidigital number, since it uses as much as digits as its factorization.

2112010121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704003373710.

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

Adding to 2112010121121 its reverse (1211210102112), we get a palindrome (3323220223233).

The spelling of 2112010121121 in words is "two trillion, one hundred twelve billion, ten million, one hundred twenty-one thousand, one hundred twenty-one".