2211212122122 has 8 divisors (see below), whose sum is σ = 4422424244256. Its totient is φ = 737070707372.

The previous prime is 2211212122103. The next prime is 2211212122129. The reversal of 2211212122122 is 2212212121122.

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

2211212122122 is an admirable number.

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

It is not an unprimeable number, because it can be changed into a prime (2211212122129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184267676838 + ... + 184267676849.

It is an arithmetic number, because the mean of its divisors is an integer number (552803030532).

Almost surely, 2^{2211212122122} is an apocalyptic number.

2211212122122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2211212122122 is a wasteful number, since it uses less digits than its factorization.

2211212122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368535353692.

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

Adding to 2211212122122 its reverse (2212212121122), we get a palindrome (4423424243244).

The spelling of 2211212122122 in words is "two trillion, two hundred eleven billion, two hundred twelve million, one hundred twenty-two thousand, one hundred twenty-two".