122212100212 has 24 divisors (see below), whose sum is σ = 219111520320. Its totient is φ = 59609135040.

The previous prime is 122212100201. The next prime is 122212100221. The reversal of 122212100212 is 212001212221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1684339 + ... + 1755397.

It is an arithmetic number, because the mean of its divisors is an integer number (9129646680).

Almost surely, 2^122212100212 is an apocalyptic number.

It is an amenable number.

122212100212 is a deficient number, since it is larger than the sum of its proper divisors (96899420108).

122212100212 is a wasteful number, since it uses less digits than its factorization.

122212100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81591 (or 81589 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122212100212 its reverse (212001212221), we get a palindrome (334213312433).

The spelling of 122212100212 in words is "one hundred twenty-two billion, two hundred twelve million, one hundred thousand, two hundred twelve".