212007776 has 48 divisors (see below), whose sum is σ = 442355760. Its totient is φ = 99740160.

The previous prime is 212007739. The next prime is 212007793. The reversal of 212007776 is 677700212.

It is a happy number.

212007776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94346 + ... + 96566.

It is an arithmetic number, because the mean of its divisors is an integer number (9215745).

Almost surely, 2^212007776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212007776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221177880).

212007776 is an abundant number, since it is smaller than the sum of its proper divisors (230347984).

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

212007776 is a wasteful number, since it uses less digits than its factorization.

212007776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407 (or 2399 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 212007776 is about 14560.4868050488. The cubic root of 212007776 is about 596.2804859688.

Adding to 212007776 its reverse (677700212), we get a palindrome (889707988).

The spelling of 212007776 in words is "two hundred twelve million, seven thousand, seven hundred seventy-six".