231212002210 has 40 divisors (see below), whose sum is σ = 485516365596. Its totient is φ = 79272678240.

The previous prime is 231212002163. The next prime is 231212002211. The reversal of 231212002210 is 12200212132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 225584151849 + 5627850361 = 474957^2 + 75019^2 .

It is not an unprimeable number, because it can be changed into a prime (231212002211) 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, 4790901 + ... + 4838920.

Almost surely, 2^231212002210 is an apocalyptic number.

231212002210 is an abundant number, since it is smaller than the sum of its proper divisors (254304363386).

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

231212002210 is an frugal number, since it uses more digits than its factorization.

231212002210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9629856 (or 9629835 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 231212002210 its reverse (12200212132), we get a palindrome (243412214342).

The spelling of 231212002210 in words is "two hundred thirty-one billion, two hundred twelve million, two thousand, two hundred ten".