212144214340 has 48 divisors (see below), whose sum is σ = 456241439808. Its totient is φ = 82815513984.

The previous prime is 212144214329. The next prime is 212144214353. The reversal of 212144214340 is 43412441212.

It is a junction number, because it is equal to n+sod(n) for n = 212144214299 and 212144214308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 941499 + ... + 1144861.

It is an arithmetic number, because the mean of its divisors is an integer number (9505029996).

Almost surely, 2^212144214340 is an apocalyptic number.

212144214340 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 212144214340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228120719904).

212144214340 is an abundant number, since it is smaller than the sum of its proper divisors (244097225468).

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

212144214340 is a wasteful number, since it uses less digits than its factorization.

212144214340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204628 (or 204626 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 212144214340 its reverse (43412441212), we get a palindrome (255556655552).

The spelling of 212144214340 in words is "two hundred twelve billion, one hundred forty-four million, two hundred fourteen thousand, three hundred forty".