212143310240122 has 8 divisors (see below), whose sum is σ = 318215497873716. Its totient is φ = 106071477615552.

The previous prime is 212143310240041. The next prime is 212143310240201. The reversal of 212143310240122 is 221042013341212.

It can be written as a sum of positive squares in 2 ways, for example, as 200366601218281 + 11776709021841 = 14155091^2 + 3431721^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87253263 + ... + 89651650.

Almost surely, 2^{212143310240122} is an apocalyptic number.

212143310240122 is a deficient number, since it is larger than the sum of its proper divisors (106072187633594).

212143310240122 is a wasteful number, since it uses less digits than its factorization.

212143310240122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177504512.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 212143310240122 its reverse (221042013341212), we get a palindrome (433185323581334).

The spelling of 212143310240122 in words is "two hundred twelve trillion, one hundred forty-three billion, three hundred ten million, two hundred forty thousand, one hundred twenty-two".