312210222020 has 48 divisors (see below), whose sum is σ = 673444594368. Its totient is φ = 121537933440.

The previous prime is 312210222019. The next prime is 312210222029. The reversal of 312210222020 is 20222012213.

It is a self number, because there is not a number n which added to its sum of digits gives 312210222020.

It is not an unprimeable number, because it can be changed into a prime (312210222029) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1292351 + ... + 1514790.

It is an arithmetic number, because the mean of its divisors is an integer number (14030095716).

Almost surely, 2^312210222020 is an apocalyptic number.

It is an amenable number.

312210222020 is an abundant number, since it is smaller than the sum of its proper divisors (361234372348).

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

312210222020 is a wasteful number, since it uses less digits than its factorization.

312210222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2807300 (or 2807298 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 312210222020 its reverse (20222012213), we get a palindrome (332432234233).

The spelling of 312210222020 in words is "three hundred twelve billion, two hundred ten million, two hundred twenty-two thousand, twenty".