2211212222210 has 8 divisors (see below), whose sum is σ = 3980181999996. Its totient is φ = 884484888880.

The previous prime is 2211212222203. The next prime is 2211212222221. The reversal of 2211212222210 is 122222121122.

It can be written as a sum of positive squares in 2 ways, for example, as 1997617583641 + 213594638569 = 1413371^2 + 462163^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110560611101 + ... + 110560611120.

Almost surely, 2^{2211212222210} is an apocalyptic number.

2211212222210 is a deficient number, since it is larger than the sum of its proper divisors (1768969777786).

2211212222210 is a wasteful number, since it uses less digits than its factorization.

2211212222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221121222228.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2211212222210 its reverse (122222121122), we get a palindrome (2333434343332).

The spelling of 2211212222210 in words is "two trillion, two hundred eleven billion, two hundred twelve million, two hundred twenty-two thousand, two hundred ten".