312202214120421 has 16 divisors (see below), whose sum is σ = 462523169489920. Its totient is φ = 208134192556800.

The previous prime is 312202214120417. The next prime is 312202214120441. The reversal of 312202214120421 is 124021412202213.

312202214120421 is a `hidden beast` number, since 3 + 1 + 2 + 2 + 0 + 2 + 214 + 1 + 20 + 421 = 666.

It is not a de Polignac number, because 312202214120421 - 2² = 312202214120417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312202214120441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7762885 + ... + 26166138.

It is an arithmetic number, because the mean of its divisors is an integer number (28907698093120).

Almost surely, 2^{312202214120421} is an apocalyptic number.

It is an amenable number.

312202214120421 is a deficient number, since it is larger than the sum of its proper divisors (150320955369499).

312202214120421 is a wasteful number, since it uses less digits than its factorization.

312202214120421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34269833 (or 34269827 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 312202214120421 its reverse (124021412202213), we get a palindrome (436223626322634).

The spelling of 312202214120421 in words is "three hundred twelve trillion, two hundred two billion, two hundred fourteen million, one hundred twenty thousand, four hundred twenty-one".