2121212000 has 48 divisors (see below), whose sum is σ = 5211827712. Its totient is φ = 848483200.

The previous prime is 2121211997. The next prime is 2121212011. The reversal of 2121212000 is 2121212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261152 + ... + 269151.

It is an arithmetic number, because the mean of its divisors is an integer number (108579744).

Almost surely, 2^2121212000 is an apocalyptic number.

2121212000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121212000 is an abundant number, since it is smaller than the sum of its proper divisors (3090615712).

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

2121212000 is an equidigital number, since it uses as much as digits as its factorization.

2121212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530328 (or 530310 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2121212000 is about 46056.6173312804. The cubic root of 2121212000 is about 1284.8764182403.

Adding to 2121212000 its reverse (2121212), we get a palindrome (2123333212).

2121212000 divided by its reverse (2121212) gives a cube (1000 = 10³).

The spelling of 2121212000 in words is "two billion, one hundred twenty-one million, two hundred twelve thousand".