122220022212 has 72 divisors (see below), whose sum is σ = 330059256800. Its totient is φ = 38019725568.

The previous prime is 122220022159. The next prime is 122220022237. The reversal of 122220022212 is 212220022221.

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 23 ways as a sum of consecutive naturals, for example, 1287637 + ... + 1379292.

Almost surely, 2^122220022212 is an apocalyptic number.

122220022212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122220022212 is an abundant number, since it is smaller than the sum of its proper divisors (207839234588).

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

122220022212 is a wasteful number, since it uses less digits than its factorization.

122220022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2667025 (or 2667020 counting only the distinct ones).

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

Adding to 122220022212 its reverse (212220022221), we get a palindrome (334440044433).

Subtracting 122220022212 from its reverse (212220022221), we obtain a palindrome (90000000009).

The spelling of 122220022212 in words is "one hundred twenty-two billion, two hundred twenty million, twenty-two thousand, two hundred twelve".