2212212122 has 4 divisors (see below), whose sum is σ = 3318318186. Its totient is φ = 1106106060.

The previous prime is 2212212109. The next prime is 2212212131. The reversal of 2212212122 is 2212122122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2181730681 + 30481441 = 46709^2 + 5521^2 .

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 2212212122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553053029 + ... + 553053032.

Almost surely, 2^2212212122 is an apocalyptic number.

2212212122 is a deficient number, since it is larger than the sum of its proper divisors (1106106064).

2212212122 is a wasteful number, since it uses less digits than its factorization.

2212212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106106063.

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

The square root of 2212212122 is about 47034.1590974049. The cubic root of 2212212122 is about 1302.9935200477.

Adding to 2212212122 its reverse (2212122122), we get a palindrome (4424334244).

Subtracting from 2212212122 its reverse (2212122122), we obtain a square (90000 = 300²).

The spelling of 2212212122 in words is "two billion, two hundred twelve million, two hundred twelve thousand, one hundred twenty-two".