212140000 has 60 divisors (see below), whose sum is σ = 521945424. Its totient is φ = 84848000.

The previous prime is 212139989. The next prime is 212140001. The reversal of 212140000 is 41212.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212140001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 14697 + ... + 25303.

Almost surely, 2^212140000 is an apocalyptic number.

212140000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212140000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260972712).

212140000 is an abundant number, since it is smaller than the sum of its proper divisors (309805424).

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

212140000 is an equidigital number, since it uses as much as digits as its factorization.

212140000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10637 (or 10614 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 212140000 is about 14565.0266048504. The cubic root of 212140000 is about 596.4044219983.

Adding to 212140000 its reverse (41212), we get a palindrome (212181212).

The spelling of 212140000 in words is "two hundred twelve million, one hundred forty thousand".