212010021246 has 16 divisors (see below), whose sum is σ = 424026748800. Its totient is φ = 70668889368.

The previous prime is 212010021239. The next prime is 212010021247. The reversal of 212010021246 is 642120010212.

212010021246 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 (212010021247) 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 7 ways as a sum of consecutive naturals, for example, 192985 + ... + 679163.

It is an arithmetic number, because the mean of its divisors is an integer number (26501671800).

Almost surely, 2^212010021246 is an apocalyptic number.

212010021246 is an abundant number, since it is smaller than the sum of its proper divisors (212016727554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212010021246 is a wasteful number, since it uses less digits than its factorization.

212010021246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558863.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 212010021246 its reverse (642120010212), we get a palindrome (854130031458).

The spelling of 212010021246 in words is "two hundred twelve billion, ten million, twenty-one thousand, two hundred forty-six".