212252033440445 has 8 divisors (see below), whose sum is σ = 254771334508344. Its totient is φ = 169755697165824.

The previous prime is 212252033440439. The next prime is 212252033440519. The reversal of 212252033440445 is 544044330252212.

It can be written as a sum of positive squares in 4 ways, for example, as 18179188854436 + 194072844586009 = 4263706^2 + 13931003^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212252033440445 - 2²⁰ = 212252032391869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5741177984 + ... + 5741214953.

It is an arithmetic number, because the mean of its divisors is an integer number (31846416813543).

Almost surely, 2^{212252033440445} is an apocalyptic number.

It is an amenable number.

212252033440445 is a deficient number, since it is larger than the sum of its proper divisors (42519301067899).

212252033440445 is a wasteful number, since it uses less digits than its factorization.

212252033440445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11482396639.

The product of its (nonzero) digits is 921600, while the sum is 41.

Adding to 212252033440445 its reverse (544044330252212), we get a palindrome (756296363692657).

The spelling of 212252033440445 in words is "two hundred twelve trillion, two hundred fifty-two billion, thirty-three million, four hundred forty thousand, four hundred forty-five".