2012330121 has 4 divisors (see below), whose sum is σ = 2683106832. Its totient is φ = 1341553412.

The previous prime is 2012330101. The next prime is 2012330123. The reversal of 2012330121 is 1210332102.

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 2012330121 - 2¹⁸ = 2012067977 is a prime.

It is a super-4 number, since 4×2012330121⁴ (a number of 38 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2012330121.

It is not an unprimeable number, because it can be changed into a prime (2012330123) 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, 335388351 + ... + 335388356.

It is an arithmetic number, because the mean of its divisors is an integer number (670776708).

Almost surely, 2^2012330121 is an apocalyptic number.

It is an amenable number.

2012330121 is a deficient number, since it is larger than the sum of its proper divisors (670776711).

2012330121 is an equidigital number, since it uses as much as digits as its factorization.

2012330121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670776710.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2012330121 is about 44859.0026750484. The cubic root of 2012330121 is about 1262.5049104276.

Adding to 2012330121 its reverse (1210332102), we get a palindrome (3222662223).

The spelling of 2012330121 in words is "two billion, twelve million, three hundred thirty thousand, one hundred twenty-one".