212027279772 has 192 divisors, whose sum is σ = 628301721600. Its totient is φ = 54048798720.

The previous prime is 212027279771. The next prime is 212027279773. The reversal of 212027279772 is 277972720212.

It is an interprime number because it is at equal distance from previous prime (212027279771) and next prime (212027279773).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212027279771) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36686379 + ... + 36692157.

It is an arithmetic number, because the mean of its divisors is an integer number (3272404800).

Almost surely, 2^212027279772 is an apocalyptic number.

212027279772 is a gapful number since it is divisible by the number (22) 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 212027279772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314150860800).

212027279772 is an abundant number, since it is smaller than the sum of its proper divisors (416274441828).

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

212027279772 is a wasteful number, since it uses less digits than its factorization.

212027279772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6536 (or 6534 counting only the distinct ones).

The product of its (nonzero) digits is 691488, while the sum is 48.

Adding to 212027279772 its reverse (277972720212), we get a palindrome (489999999984).

The spelling of 212027279772 in words is "two hundred twelve billion, twenty-seven million, two hundred seventy-nine thousand, seven hundred seventy-two".