2312221210212 has 48 divisors (see below), whose sum is σ = 5521025708352. Its totient is φ = 752765274240.

The previous prime is 2312221210199. The next prime is 2312221210213. The reversal of 2312221210212 is 2120121222132.

It is a super-3 number, since 3×2312221210212³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2312221210213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7895998 + ... + 8183594.

It is an arithmetic number, because the mean of its divisors is an integer number (115021368924).

Almost surely, 2^{2312221210212} is an apocalyptic number.

It is an amenable number.

2312221210212 is an abundant number, since it is smaller than the sum of its proper divisors (3208804498140).

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

2312221210212 is a wasteful number, since it uses less digits than its factorization.

2312221210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303228 (or 303226 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 2312221210212 its reverse (2120121222132), we get a palindrome (4432342432344).

The spelling of 2312221210212 in words is "two trillion, three hundred twelve billion, two hundred twenty-one million, two hundred ten thousand, two hundred twelve".