2122212122 has 8 divisors (see below), whose sum is σ = 3186017172. Its totient is φ = 1060206400.

The previous prime is 2122212091. The next prime is 2122212133. The reversal of 2122212122 is 2212122212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2099564041 + 22648081 = 45821^2 + 4759^2 .

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

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

It is a self number, because there is not a number n which added to its sum of digits gives 2122212122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446879 + ... + 451602.

Almost surely, 2^2122212122 is an apocalyptic number.

2122212122 is a deficient number, since it is larger than the sum of its proper divisors (1063805050).

2122212122 is a wasteful number, since it uses less digits than its factorization.

2122212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899664.

The product of its digits is 128, while the sum is 17.

The square root of 2122212122 is about 46067.4735795225. The cubic root of 2122212122 is about 1285.0783203082.

Adding to 2122212122 its reverse (2212122212), we get a palindrome (4334334334).

It can be divided in two parts, 212 and 2212122, that multiplied together give a palindrome (468969864).

The spelling of 2122212122 in words is "two billion, one hundred twenty-two million, two hundred twelve thousand, one hundred twenty-two".