2012223021 has 8 divisors (see below), whose sum is σ = 2683266720. Its totient is φ = 1341330672.

The previous prime is 2012223007. The next prime is 2012223023. The reversal of 2012223021 is 1203222102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2012223021 - 2⁷ = 2012222893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012223023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1951 + ... + 63468.

It is an arithmetic number, because the mean of its divisors is an integer number (335408340).

Almost surely, 2^2012223021 is an apocalyptic number.

It is an amenable number.

2012223021 is a deficient number, since it is larger than the sum of its proper divisors (671043699).

2012223021 is a wasteful number, since it uses less digits than its factorization.

2012223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75675.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2012223021 is about 44857.8089188493. The cubic root of 2012223021 is about 1262.4825124003.

Adding to 2012223021 its reverse (1203222102), we get a palindrome (3215445123).

It can be divided in two parts, 201 and 2223021, that added together give a palindrome (2223222).

The spelling of 2012223021 in words is "two billion, twelve million, two hundred twenty-three thousand, twenty-one".