2012233121 has 16 divisors (see below), whose sum is σ = 2102855040. Its totient is φ = 1923116160.

The previous prime is 2012233079. The next prime is 2012233147. The reversal of 2012233121 is 1213322102.

It is a cyclic number.

It is not a de Polignac number, because 2012233121 - 2¹⁰ = 2012232097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2012233121.

It is not an unprimeable number, because it can be changed into a prime (2012233021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2268140 + ... + 2269026.

It is an arithmetic number, because the mean of its divisors is an integer number (131428440).

Almost surely, 2^2012233121 is an apocalyptic number.

It is an amenable number.

2012233121 is a deficient number, since it is larger than the sum of its proper divisors (90621919).

2012233121 is a wasteful number, since it uses less digits than its factorization.

2012233121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2012233121 is about 44857.9214966543. The cubic root of 2012233121 is about 1262.4846246665.

Adding to 2012233121 its reverse (1213322102), we get a palindrome (3225555223).

It can be divided in two parts, 201 and 2233121, that added together give a palindrome (2233322).

The spelling of 2012233121 in words is "two billion, twelve million, two hundred thirty-three thousand, one hundred twenty-one".