212434144612 has 12 divisors (see below), whose sum is σ = 371764794940. Its totient is φ = 106215631776.

The previous prime is 212434144583. The next prime is 212434144613. The reversal of 212434144612 is 216441434212.

It can be written as a sum of positive squares in 2 ways, for example, as 134244563236 + 78189581376 = 366394^2 + 279624^2 .

It is not an unprimeable number, because it can be changed into a prime (212434144613) 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, 15118 + ... + 651994.

Almost surely, 2^212434144612 is an apocalyptic number.

It is an amenable number.

212434144612 is a deficient number, since it is larger than the sum of its proper divisors (159330650328).

212434144612 is a wasteful number, since it uses less digits than its factorization.

212434144612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720270 (or 720268 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

Adding to 212434144612 its reverse (216441434212), we get a palindrome (428875578824).

The spelling of 212434144612 in words is "two hundred twelve billion, four hundred thirty-four million, one hundred forty-four thousand, six hundred twelve".