2112021404 has 24 divisors (see below), whose sum is σ = 3717439488. Its totient is φ = 1049909040.

The previous prime is 2112021389. The next prime is 2112021409. The reversal of 2112021404 is 4041202112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112021409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1347029 + ... + 1348595.

It is an arithmetic number, because the mean of its divisors is an integer number (154893312).

Almost surely, 2^2112021404 is an apocalyptic number.

It is an amenable number.

2112021404 is a deficient number, since it is larger than the sum of its proper divisors (1605418084).

2112021404 is a wasteful number, since it uses less digits than its factorization.

2112021404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305 (or 3303 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2112021404 is about 45956.7340440985. The cubic root of 2112021404 is about 1283.0180662050.

Adding to 2112021404 its reverse (4041202112), we get a palindrome (6153223516).

It can be divided in two parts, 21120 and 21404, that added together give a palindrome (42524).

The spelling of 2112021404 in words is "two billion, one hundred twelve million, twenty-one thousand, four hundred four".