122122112220212 has 96 divisors (see below), whose sum is σ = 242515296898560. Its totient is φ = 53432137774080.

The previous prime is 122122112220211. The next prime is 122122112220233. The reversal of 122122112220212 is 212022211221221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122122112220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9544418 + ... + 18312294.

It is an arithmetic number, because the mean of its divisors is an integer number (2526201009360).

Almost surely, 2^{122122112220212} is an apocalyptic number.

It is an amenable number.

122122112220212 is a deficient number, since it is larger than the sum of its proper divisors (120393184678348).

122122112220212 is a wasteful number, since it uses less digits than its factorization.

122122112220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8768121 (or 8768119 counting only the distinct ones).

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

Adding to 122122112220212 its reverse (212022211221221), we get a palindrome (334144323441433).

The spelling of 122122112220212 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, one hundred twelve million, two hundred twenty thousand, two hundred twelve".