122101312212 has 36 divisors (see below), whose sum is σ = 336703619616. Its totient is φ = 37000397520.

The previous prime is 122101312211. The next prime is 122101312219. The reversal of 122101312212 is 212213101221.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122101312211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154167928 + ... + 154168719.

Almost surely, 2^122101312212 is an apocalyptic number.

122101312212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122101312212 is an abundant number, since it is smaller than the sum of its proper divisors (214602307404).

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

122101312212 is a wasteful number, since it uses less digits than its factorization.

122101312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308336668 (or 308336663 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 122101312212 its reverse (212213101221), we get a palindrome (334314413433).

The spelling of 122101312212 in words is "one hundred twenty-two billion, one hundred one million, three hundred twelve thousand, two hundred twelve".