212140321000 has 64 divisors (see below), whose sum is σ = 496525844880. Its totient is φ = 84836044800.

The previous prime is 212140320989. The next prime is 212140321009. The reversal of 212140321000 is 123041212.

It can be written as a sum of positive squares in 8 ways, for example, as 2594272356 + 209546048644 = 50934^2 + 457762^2 .

It is not an unprimeable number, because it can be changed into a prime (212140321009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4634224 + ... + 4679776.

Almost surely, 2^212140321000 is an apocalyptic number.

212140321000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212140321000 is an abundant number, since it is smaller than the sum of its proper divisors (284385523880).

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

212140321000 is a wasteful number, since it uses less digits than its factorization.

212140321000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50231 (or 50217 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 212140321000 its reverse (123041212), we get a palindrome (212263362212).

The spelling of 212140321000 in words is "two hundred twelve billion, one hundred forty million, three hundred twenty-one thousand".