212126036 has 12 divisors (see below), whose sum is σ = 377306580. Its totient is φ = 104324160.

The previous prime is 212126021. The next prime is 212126077. The reversal of 212126036 is 630621212.

It can be written as a sum of positive squares in 2 ways, for example, as 19749136 + 192376900 = 4444^2 + 13870^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434441 + ... + 434928.

It is an arithmetic number, because the mean of its divisors is an integer number (31442215).

Almost surely, 2^212126036 is an apocalyptic number.

It is an amenable number.

212126036 is a deficient number, since it is larger than the sum of its proper divisors (165180544).

212126036 is a wasteful number, since it uses less digits than its factorization.

212126036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869434 (or 869432 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 212126036 is about 14564.5472294885. The cubic root of 212126036 is about 596.3913357124.

Adding to 212126036 its reverse (630621212), we get a palindrome (842747248).

The spelling of 212126036 in words is "two hundred twelve million, one hundred twenty-six thousand, thirty-six".