212862188936 has 16 divisors (see below), whose sum is σ = 399180485340. Its totient is φ = 106414059520.

The previous prime is 212862188899. The next prime is 212862188939. The reversal of 212862188936 is 639881268212.

It is a happy number.

212862188936 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 2 ways, for example, as 177670680100 + 35191508836 = 421510^2 + 187594^2 .

It is a super-2 number, since 2×212862188936² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212862188939) 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 3 ways as a sum of consecutive naturals, for example, 2076185 + ... + 2176296.

Almost surely, 2^212862188936 is an apocalyptic number.

It is an amenable number.

212862188936 is a deficient number, since it is larger than the sum of its proper divisors (186318296404).

212862188936 is a wasteful number, since it uses less digits than its factorization.

212862188936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4258744 (or 4258740 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 56.

The spelling of 212862188936 in words is "two hundred twelve billion, eight hundred sixty-two million, one hundred eighty-eight thousand, nine hundred thirty-six".