312122301212 has 24 divisors (see below), whose sum is σ = 551725504512. Its totient is φ = 154487588400.

The previous prime is 312122301209. The next prime is 312122301233. The reversal of 312122301212 is 212103221213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 958637 + ... + 1242267.

It is an arithmetic number, because the mean of its divisors is an integer number (22988562688).

Almost surely, 2^312122301212 is an apocalyptic number.

It is an amenable number.

312122301212 is a deficient number, since it is larger than the sum of its proper divisors (239603203300).

312122301212 is a wasteful number, since it uses less digits than its factorization.

312122301212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286409 (or 286407 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 312122301212 its reverse (212103221213), we get a palindrome (524225522425).

The spelling of 312122301212 in words is "three hundred twelve billion, one hundred twenty-two million, three hundred one thousand, two hundred twelve".