2122311204 has 36 divisors (see below), whose sum is σ = 5777403996. Its totient is φ = 653018688.

The previous prime is 2122311203. The next prime is 2122311227. The reversal of 2122311204 is 4021132212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 118853604 + 2003457600 = 10902^2 + 44760^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×2122311204³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2122311203) 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, 2266959 + ... + 2267894.

Almost surely, 2^2122311204 is an apocalyptic number.

It is an amenable number.

2122311204 is an abundant number, since it is smaller than the sum of its proper divisors (3655092792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2122311204 is a wasteful number, since it uses less digits than its factorization.

2122311204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4534876 (or 4534871 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2122311204 is about 46068.5489678153. The cubic root of 2122311204 is about 1285.0983192749.

Adding to 2122311204 its reverse (4021132212), we get a palindrome (6143443416).

The spelling of 2122311204 in words is "two billion, one hundred twenty-two million, three hundred eleven thousand, two hundred four".