122110111212 has 48 divisors (see below), whose sum is σ = 292766664960. Its totient is φ = 39584002752.

The previous prime is 122110111199. The next prime is 122110111229. The reversal of 122110111212 is 212111011221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122110111191 and 122110111200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860739 + ... + 992517.

It is an arithmetic number, because the mean of its divisors is an integer number (6099305520).

Almost surely, 2^122110111212 is an apocalyptic number.

122110111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122110111212 is an abundant number, since it is smaller than the sum of its proper divisors (170656553748).

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

122110111212 is a wasteful number, since it uses less digits than its factorization.

122110111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133910 (or 133908 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 122110111212 its reverse (212111011221), we get a palindrome (334221122433).

Subtracting 122110111212 from its reverse (212111011221), we obtain a palindrome (90000900009).

The spelling of 122110111212 in words is "one hundred twenty-two billion, one hundred ten million, one hundred eleven thousand, two hundred twelve".