122121222212 has 192 divisors, whose sum is σ = 261502214400. Its totient is φ = 49271040000.

The previous prime is 122121222191. The next prime is 122121222247. The reversal of 122121222212 is 212222121221.

122121222212 is digitally balanced in base 3, 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 an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 129777662 + ... + 129778602.

It is an arithmetic number, because the mean of its divisors is an integer number (1361990700).

Almost surely, 2^122121222212 is an apocalyptic number.

It is an amenable number.

122121222212 is an abundant number, since it is smaller than the sum of its proper divisors (139380992188).

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

122121222212 is a wasteful number, since it uses less digits than its factorization.

122121222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158 (or 1156 counting only the distinct ones).

The product of its digits is 256, while the sum is 20.

Adding to 122121222212 its reverse (212222121221), we get a palindrome (334343343433).

The spelling of 122121222212 in words is "one hundred twenty-two billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred twelve".