312212231010 has 24 divisors (see below), whose sum is σ = 811751800860. Its totient is φ = 83256594912.

The previous prime is 312212230949. The next prime is 312212231077. The reversal of 312212231010 is 10132212213.

312212231010 is a `hidden beast` number, since 312 + 21 + 22 + 310 + 1 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 279066023289 + 33146207721 = 528267^2 + 182061^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1734512305 + ... + 1734512484.

Almost surely, 2^312212231010 is an apocalyptic number.

312212231010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312212231010 is an abundant number, since it is smaller than the sum of its proper divisors (499539569850).

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

312212231010 is a wasteful number, since it uses less digits than its factorization.

312212231010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3469024802 (or 3469024799 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 312212231010 its reverse (10132212213), we get a palindrome (322344443223).

The spelling of 312212231010 in words is "three hundred twelve billion, two hundred twelve million, two hundred thirty-one thousand, ten".