212316238069 has 6 divisors (see below), whose sum is σ = 229904565666. Its totient is φ = 195984219600.

The previous prime is 212316238039. The next prime is 212316238097. The reversal of 212316238069 is 960832613212.

212316238069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 15841243044 + 196474995025 = 125862^2 + 443255^2 .

It is not a de Polignac number, because 212316238069 - 2⁵ = 212316238037 is a prime.

It is a super-2 number, since 2×212316238069² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212316238039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 628154382 + ... + 628154719.

It is an arithmetic number, because the mean of its divisors is an integer number (38317427611).

Almost surely, 2^212316238069 is an apocalyptic number.

It is an amenable number.

212316238069 is a deficient number, since it is larger than the sum of its proper divisors (17588327597).

212316238069 is a wasteful number, since it uses less digits than its factorization.

212316238069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256309127 (or 1256309114 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 212316238069 in words is "two hundred twelve billion, three hundred sixteen million, two hundred thirty-eight thousand, sixty-nine".