212112764 has 12 divisors (see below), whose sum is σ = 371491344. Its totient is φ = 105972384.

The previous prime is 212112763. The next prime is 212112767. The reversal of 212112764 is 467211212.

212112764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212112763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15137 + ... + 25560.

It is an arithmetic number, because the mean of its divisors is an integer number (30957612).

Almost surely, 2^212112764 is an apocalyptic number.

It is an amenable number.

212112764 is a deficient number, since it is larger than the sum of its proper divisors (159378580).

212112764 is a wasteful number, since it uses less digits than its factorization.

212112764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42004 (or 42002 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 212112764 is about 14564.0915954274. The cubic root of 212112764 is about 596.3788973981.

Adding to 212112764 its reverse (467211212), we get a palindrome (679323976).

The spelling of 212112764 in words is "two hundred twelve million, one hundred twelve thousand, seven hundred sixty-four".