212030140436 has 12 divisors (see below), whose sum is σ = 371060009460. Its totient is φ = 106012994880.

The previous prime is 212030140433. The next prime is 212030140453. The reversal of 212030140436 is 634041030212.

212030140436 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 114744787600 + 97285352836 = 338740^2 + 311906^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212030140433) 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, 276371 + ... + 707418.

It is an arithmetic number, because the mean of its divisors is an integer number (30921667455).

Almost surely, 2^212030140436 is an apocalyptic number.

It is an amenable number.

212030140436 is a deficient number, since it is larger than the sum of its proper divisors (159029869024).

212030140436 is a wasteful number, since it uses less digits than its factorization.

212030140436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037674 (or 1037672 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 212030140436 its reverse (634041030212), we get a palindrome (846071170648).

The spelling of 212030140436 in words is "two hundred twelve billion, thirty million, one hundred forty thousand, four hundred thirty-six".