2001212124 has 48 divisors (see below), whose sum is σ = 4711996800. Its totient is φ = 661026496.

The previous prime is 2001212117. The next prime is 2001212149. The reversal of 2001212124 is 4212121002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679447 + ... + 682385.

It is an arithmetic number, because the mean of its divisors is an integer number (98166600).

Almost surely, 2^2001212124 is an apocalyptic number.

It is an amenable number.

2001212124 is an abundant number, since it is smaller than the sum of its proper divisors (2710784676).

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

2001212124 is a wasteful number, since it uses less digits than its factorization.

2001212124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442 (or 3440 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2001212124 is about 44734.9094555918. The cubic root of 2001212124 is about 1260.1755285823.

Adding to 2001212124 its reverse (4212121002), we get a palindrome (6213333126).

The spelling of 2001212124 in words is "two billion, one million, two hundred twelve thousand, one hundred twenty-four".