212385767701 has 4 divisors (see below), whose sum is σ = 224879048172. Its totient is φ = 199892487232.

The previous prime is 212385767603. The next prime is 212385767729. The reversal of 212385767701 is 107767583212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 175770562500 + 36615205201 = 419250^2 + 191351^2 .

It is a cyclic number.

It is not a de Polignac number, because 212385767701 - 2¹⁷ = 212385636629 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212385767771) 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, 6246640210 + ... + 6246640243.

It is an arithmetic number, because the mean of its divisors is an integer number (56219762043).

Almost surely, 2^212385767701 is an apocalyptic number.

It is an amenable number.

212385767701 is a deficient number, since it is larger than the sum of its proper divisors (12493280471).

212385767701 is a wasteful number, since it uses less digits than its factorization.

212385767701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12493280470.

The product of its (nonzero) digits is 987840, while the sum is 49.

The spelling of 212385767701 in words is "two hundred twelve billion, three hundred eighty-five million, seven hundred sixty-seven thousand, seven hundred one".