2212211211212 has 6 divisors (see below), whose sum is σ = 3871369619628. Its totient is φ = 1106105605604.

The previous prime is 2212211211181. The next prime is 2212211211229. The reversal of 2212211211212 is 2121121122122.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276526401398 + ... + 276526401405.

It is an arithmetic number, because the mean of its divisors is an integer number (645228269938).

Almost surely, 2^{2212211211212} is an apocalyptic number.

It is an amenable number.

2212211211212 is a deficient number, since it is larger than the sum of its proper divisors (1659158408416).

2212211211212 is a wasteful number, since it uses less digits than its factorization.

2212211211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553052802807 (or 553052802805 counting only the distinct ones).

The product of its digits is 128, while the sum is 20.

Adding to 2212211211212 its reverse (2121121122122), we get a palindrome (4333332333334).

The spelling of 2212211211212 in words is "two trillion, two hundred twelve billion, two hundred eleven million, two hundred eleven thousand, two hundred twelve".