2122211222212 has 6 divisors (see below), whose sum is σ = 3713869638878. Its totient is φ = 1061105611104.

The previous prime is 2122211222207. The next prime is 2122211222221. The reversal of 2122211222212 is 2122221122212.

It can be written as a sum of positive squares in only one way, i.e., 1772002919556 + 350208302656 = 1331166^2 + 591784^2 .

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, 265276402773 + ... + 265276402780.

Almost surely, 2^{2122211222212} is an apocalyptic number.

It is an amenable number.

2122211222212 is a deficient number, since it is larger than the sum of its proper divisors (1591658416666).

2122211222212 is a wasteful number, since it uses less digits than its factorization.

2122211222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530552805557 (or 530552805555 counting only the distinct ones).

The product of its digits is 512, while the sum is 22.

Adding to 2122211222212 its reverse (2122221122212), we get a palindrome (4244432344424).

The spelling of 2122211222212 in words is "two trillion, one hundred twenty-two billion, two hundred eleven million, two hundred twenty-two thousand, two hundred twelve".