12022212122 has 4 divisors (see below), whose sum is σ = 18033318186. Its totient is φ = 6011106060.

The previous prime is 12022212121. The next prime is 12022212127. The reversal of 12022212122 is 22121222021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22121222021 = 36373 ⋅608177.

It can be written as a sum of positive squares in only one way, i.e., 6403360441 + 5618851681 = 80021^2 + 74959^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12022212122.

It is not an unprimeable number, because it can be changed into a prime (12022212121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3005553029 + ... + 3005553032.

Almost surely, 2^12022212122 is an apocalyptic number.

12022212122 is a deficient number, since it is larger than the sum of its proper divisors (6011106064).

12022212122 is an equidigital number, since it uses as much as digits as its factorization.

12022212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6011106063.

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

Adding to 12022212122 its reverse (22121222021), we get a palindrome (34143434143).

The spelling of 12022212122 in words is "twelve billion, twenty-two million, two hundred twelve thousand, one hundred twenty-two".