2122211211222 has 32 divisors (see below), whose sum is σ = 4334829778944. Its totient is φ = 692336542400.

The previous prime is 2122211211193. The next prime is 2122211211223. The reversal of 2122211211222 is 2221121122212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122211211223) 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, 21959347 + ... + 22055777.

It is an arithmetic number, because the mean of its divisors is an integer number (135463430592).

Almost surely, 2^{2122211211222} is an apocalyptic number.

2122211211222 is an abundant number, since it is smaller than the sum of its proper divisors (2212618567722).

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

2122211211222 is a wasteful number, since it uses less digits than its factorization.

2122211211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174524.

The product of its digits is 256, while the sum is 21.

Adding to 2122211211222 its reverse (2221121122212), we get a palindrome (4343332333434).

The spelling of 2122211211222 in words is "two trillion, one hundred twenty-two billion, two hundred eleven million, two hundred eleven thousand, two hundred twenty-two".