312201223200220 has 24 divisors (see below), whose sum is σ = 657730679887008. Its totient is φ = 124478944296000.

The previous prime is 312201223200157. The next prime is 312201223200233. The reversal of 312201223200220 is 22002322102213.

It is a junction number, because it is equal to n+sod(n) for n = 312201223200191 and 312201223200200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25096555131 + ... + 25096567570.

It is an arithmetic number, because the mean of its divisors is an integer number (27405444995292).

Almost surely, 2^{312201223200220} is an apocalyptic number.

It is an amenable number.

312201223200220 is an abundant number, since it is smaller than the sum of its proper divisors (345529456686788).

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

312201223200220 is a wasteful number, since it uses less digits than its factorization.

312201223200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50193123021 (or 50193123019 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 312201223200220 its reverse (22002322102213), we get a palindrome (334203545302433).

The spelling of 312201223200220 in words is "three hundred twelve trillion, two hundred one billion, two hundred twenty-three million, two hundred thousand, two hundred twenty".