2012221323 has 12 divisors (see below), whose sum is σ = 3321762288. Its totient is φ = 1149840720.

The previous prime is 2012221307. The next prime is 2012221327. The reversal of 2012221323 is 3231222102.

It is not a de Polignac number, because 2012221323 - 2⁴ = 2012221307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012221296 and 2012221305.

It is not an unprimeable number, because it can be changed into a prime (2012221327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15969948 + ... + 15970073.

It is an arithmetic number, because the mean of its divisors is an integer number (276813524).

Almost surely, 2^2012221323 is an apocalyptic number.

2012221323 is a deficient number, since it is larger than the sum of its proper divisors (1309540965).

2012221323 is a wasteful number, since it uses less digits than its factorization.

2012221323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31940034 (or 31940031 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2012221323 is about 44857.7899923748. The cubic root of 2012221323 is about 1262.4821572879.

Adding to 2012221323 its reverse (3231222102), we get a palindrome (5243443425).

The spelling of 2012221323 in words is "two billion, twelve million, two hundred twenty-one thousand, three hundred twenty-three".