312120101212201 has 8 divisors (see below), whose sum is σ = 313345555165440. Its totient is φ = 310894732366848.

The previous prime is 312120101212147. The next prime is 312120101212253. The reversal of 312120101212201 is 102212101021213.

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

It is a cyclic number.

It is not a de Polignac number, because 312120101212201 - 2¹⁵ = 312120101179433 is a prime.

It is a super-2 number, since 2×312120101212201² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312120101212501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13922901 + ... + 28602226.

It is an arithmetic number, because the mean of its divisors is an integer number (39168194395680).

Almost surely, 2^{312120101212201} is an apocalyptic number.

It is an amenable number.

312120101212201 is a deficient number, since it is larger than the sum of its proper divisors (1225453953239).

312120101212201 is a wasteful number, since it uses less digits than its factorization.

312120101212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42553943.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 312120101212201 its reverse (102212101021213), we get a palindrome (414332202233414).

The spelling of 312120101212201 in words is "three hundred twelve trillion, one hundred twenty billion, one hundred one million, two hundred twelve thousand, two hundred one".