212130302031112 has 8 divisors (see below), whose sum is σ = 397744316308350. Its totient is φ = 106065151015552.

The previous prime is 212130302031107. The next prime is 212130302031251. The reversal of 212130302031112 is 211130203031212.

It can be written as a sum of positive squares in only one way, i.e., 212027205811716 + 103096219396 = 14561154^2 + 321086^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 13258143876937 + ... + 13258143876952.

Almost surely, 2^{212130302031112} is an apocalyptic number.

It is an amenable number.

212130302031112 is a deficient number, since it is larger than the sum of its proper divisors (185614014277238).

212130302031112 is a wasteful number, since it uses less digits than its factorization.

212130302031112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26516287753895 (or 26516287753891 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 212130302031112 its reverse (211130203031212), we get a palindrome (423260505062324).

The spelling of 212130302031112 in words is "two hundred twelve trillion, one hundred thirty billion, three hundred two million, thirty-one thousand, one hundred twelve".