2122011988 has 12 divisors (see below), whose sum is σ = 3799882240. Its totient is φ = 1036331352.

The previous prime is 2122011973. The next prime is 2122012021. The reversal of 2122011988 is 8891102212.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6168468 + ... + 6168811.

Almost surely, 2^2122011988 is an apocalyptic number.

It is an amenable number.

2122011988 is a deficient number, since it is larger than the sum of its proper divisors (1677870252).

2122011988 is a wasteful number, since it uses less digits than its factorization.

2122011988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12337326 (or 12337324 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 2122011988 is about 46065.3013449386. The cubic root of 2122011988 is about 1285.0379228464.

The spelling of 2122011988 in words is "two billion, one hundred twenty-two million, eleven thousand, nine hundred eighty-eight".