122220202212 has 96 divisors (see below), whose sum is σ = 327447711360. Its totient is φ = 39398486400.

The previous prime is 122220202201. The next prime is 122220202243. The reversal of 122220202212 is 212202022221.

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

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 31 ways as a sum of consecutive naturals, for example, 338758 + ... + 599330.

It is an arithmetic number, because the mean of its divisors is an integer number (3410913660).

Almost surely, 2^122220202212 is an apocalyptic number.

122220202212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122220202212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163723855680).

122220202212 is an abundant number, since it is smaller than the sum of its proper divisors (205227509148).

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

122220202212 is a wasteful number, since it uses less digits than its factorization.

122220202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260730 (or 260722 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 122220202212 its reverse (212202022221), we get a palindrome (334422224433).

The spelling of 122220202212 in words is "one hundred twenty-two billion, two hundred twenty million, two hundred two thousand, two hundred twelve".