212011412 has 6 divisors (see below), whose sum is σ = 371019978. Its totient is φ = 106005704.

The previous prime is 212011381. The next prime is 212011421. The reversal of 212011412 is 214110212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 208340356 + 3671056 = 14434^2 + 1916^2 .

It is a super-4 number, since 4×212011412⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26501423 + ... + 26501430.

It is an arithmetic number, because the mean of its divisors is an integer number (61836663).

Almost surely, 2^212011412 is an apocalyptic number.

It is an amenable number.

212011412 is a deficient number, since it is larger than the sum of its proper divisors (159008566).

212011412 is a wasteful number, since it uses less digits than its factorization.

212011412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53002857 (or 53002855 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 212011412 is about 14560.6116629763. The cubic root of 212011412 is about 596.2838947486.

Adding to 212011412 its reverse (214110212), we get a palindrome (426121624).

The spelling of 212011412 in words is "two hundred twelve million, eleven thousand, four hundred twelve".