212246442404 has 12 divisors (see below), whose sum is σ = 371506058700. Its totient is φ = 106101854208.

The previous prime is 212246442349. The next prime is 212246442409. The reversal of 212246442404 is 404244642212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66024330304 + 146222112100 = 256952^2 + 382390^2 .

It is not an unprimeable number, because it can be changed into a prime (212246442409) 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, 5319389 + ... + 5359140.

It is an arithmetic number, because the mean of its divisors is an integer number (30958838225).

Almost surely, 2^212246442404 is an apocalyptic number.

It is an amenable number.

212246442404 is a deficient number, since it is larger than the sum of its proper divisors (159259616296).

212246442404 is a wasteful number, since it uses less digits than its factorization.

212246442404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10683502 (or 10683500 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 35.

The spelling of 212246442404 in words is "two hundred twelve billion, two hundred forty-six million, four hundred forty-two thousand, four hundred four".