212130311123012 has 12 divisors (see below), whose sum is σ = 372568217912940. Its totient is φ = 105682248862176.

The previous prime is 212130311123009. The next prime is 212130311123077. The reversal of 212130311123012 is 210321113031212.

It is a happy number.

212130311123012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 110670904960576 + 101459406162436 = 10520024^2 + 10072706^2 .

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, 95726673587 + ... + 95726675802.

It is an arithmetic number, because the mean of its divisors is an integer number (31047351492745).

Almost surely, 2^{212130311123012} is an apocalyptic number.

It is an amenable number.

212130311123012 is a deficient number, since it is larger than the sum of its proper divisors (160437906789928).

212130311123012 is a wasteful number, since it uses less digits than its factorization.

212130311123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191453349670 (or 191453349668 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 212130311123012 its reverse (210321113031212), we get a palindrome (422451424154224).

The spelling of 212130311123012 in words is "two hundred twelve trillion, one hundred thirty billion, three hundred eleven million, one hundred twenty-three thousand, twelve".