122212212211212 has 24 divisors (see below), whose sum is σ = 285197756877936. Its totient is φ = 40732271443968.

The previous prime is 122212212211151. The next prime is 122212212211259. The reversal of 122212212211212 is 212112212212221.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 641479093 + ... + 641669580.

It is an arithmetic number, because the mean of its divisors is an integer number (11883239869914).

Almost surely, 2^{122212212211212} is an apocalyptic number.

122212212211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122212212211212 is an abundant number, since it is smaller than the sum of its proper divisors (162985544666724).

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

122212212211212 is a wasteful number, since it uses less digits than its factorization.

122212212211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283156617 (or 1283156615 counting only the distinct ones).

The product of its digits is 512, while the sum is 24.

Adding to 122212212211212 its reverse (212112212212221), we get a palindrome (334324424423433).

The spelling of 122212212211212 in words is "one hundred twenty-two trillion, two hundred twelve billion, two hundred twelve million, two hundred eleven thousand, two hundred twelve".