212001220444 has 12 divisors (see below), whose sum is σ = 399540761704. Its totient is φ = 97846717104.

The previous prime is 212001220427. The next prime is 212001220447. The reversal of 212001220444 is 444022100212.

212001220444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001220447) 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, 2038473222 + ... + 2038473325.

Almost surely, 2^212001220444 is an apocalyptic number.

It is an amenable number.

212001220444 is a deficient number, since it is larger than the sum of its proper divisors (187539541260).

212001220444 is a wasteful number, since it uses less digits than its factorization.

212001220444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4076946564 (or 4076946562 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 212001220444 its reverse (444022100212), we get a palindrome (656023320656).

The spelling of 212001220444 in words is "two hundred twelve billion, one million, two hundred twenty thousand, four hundred forty-four".