312022210212 has 60 divisors (see below), whose sum is σ = 815760556380. Its totient is φ = 103998112704.

The previous prime is 312022210151. The next prime is 312022210217. The reversal of 312022210212 is 212012220213.

312022210212 is a `hidden beast` number, since 31 + 202 + 221 + 0 + 212 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 273010430016 + 39011780196 = 522504^2 + 197514^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (312022210217) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4249798 + ... + 4322594.

It is an arithmetic number, because the mean of its divisors is an integer number (13596009273).

Almost surely, 2^312022210212 is an apocalyptic number.

It is an amenable number.

312022210212 is an abundant number, since it is smaller than the sum of its proper divisors (503738346168).

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

312022210212 is a wasteful number, since it uses less digits than its factorization.

312022210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86042 (or 86031 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 312022210212 its reverse (212012220213), we get a palindrome (524034430425).

The spelling of 312022210212 in words is "three hundred twelve billion, twenty-two million, two hundred ten thousand, two hundred twelve".