2131212000 has 96 divisors (see below), whose sum is σ = 6981889824. Its totient is φ = 568320000.

The previous prime is 2131211989. The next prime is 2131212023. The reversal of 2131212000 is 2121312.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 76801 + ... + 100800.

It is an arithmetic number, because the mean of its divisors is an integer number (72728019).

Almost surely, 2^2131212000 is an apocalyptic number.

2131212000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131212000 is an abundant number, since it is smaller than the sum of its proper divisors (4850677824).

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

2131212000 is a wasteful number, since it uses less digits than its factorization.

2131212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177629 (or 177611 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2131212000 is about 46165.0517166395. The cubic root of 2131212000 is about 1286.8923452955.

Adding to 2131212000 its reverse (2121312), we get a palindrome (2133333312).

The spelling of 2131212000 in words is "two billion, one hundred thirty-one million, two hundred twelve thousand".