312000122011212 has 18 divisors (see below), whose sum is σ = 788666975083988. Its totient is φ = 104000040670392.

The previous prime is 312000122011153. The next prime is 312000122011267. The reversal of 312000122011212 is 212110221000213.

312000122011212 is a `hidden beast` number, since 31 + 200 + 0 + 1 + 220 + 1 + 1 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×312000122011212² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 5 ways as a sum of consecutive naturals, for example, 4333335027898 + ... + 4333335027969.

Almost surely, 2^{312000122011212} is an apocalyptic number.

It is an amenable number.

312000122011212 is an abundant number, since it is smaller than the sum of its proper divisors (476666853072776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312000122011212 is a wasteful number, since it uses less digits than its factorization.

312000122011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8666670055877 (or 8666670055872 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 312000122011212 its reverse (212110221000213), we get a palindrome (524110343011425).

The spelling of 312000122011212 in words is "three hundred twelve trillion, one hundred twenty-two million, eleven thousand, two hundred twelve".