12122121212222 has 16 divisors (see below), whose sum is σ = 20867006526432. Its totient is φ = 5173637978880.

The previous prime is 12122121212183. The next prime is 12122121212233. The reversal of 12122121212222 is 22221212122121.

12122121212222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1796398703 + ... + 1796405450.

It is an arithmetic number, because the mean of its divisors is an integer number (1304187907902).

Almost surely, 2^{12122121212222} is an apocalyptic number.

12122121212222 is a deficient number, since it is larger than the sum of its proper divisors (8744885314210).

12122121212222 is a wasteful number, since it uses less digits than its factorization.

12122121212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3592804403.

The product of its digits is 512, while the sum is 23.

Adding to 12122121212222 its reverse (22221212122121), we get a palindrome (34343333334343).

The spelling of 12122121212222 in words is "twelve trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred twelve thousand, two hundred twenty-two".