122220122212 has 48 divisors (see below), whose sum is σ = 218993096448. Its totient is φ = 59669850240.

The previous prime is 122220122203. The next prime is 122220122261. The reversal of 122220122212 is 212221022221.

It is a self number, because there is not a number n which added to its sum of digits gives 122220122212.

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, 14130073 + ... + 14138719.

It is an arithmetic number, because the mean of its divisors is an integer number (4562356176).

Almost surely, 2^122220122212 is an apocalyptic number.

It is an amenable number.

122220122212 is a deficient number, since it is larger than the sum of its proper divisors (96772974236).

122220122212 is a wasteful number, since it uses less digits than its factorization.

122220122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9196 (or 9194 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 122220122212 its reverse (212221022221), we get a palindrome (334441144433).

Subtracting 122220122212 from its reverse (212221022221), we obtain a palindrome (90000900009).

The spelling of 122220122212 in words is "one hundred twenty-two billion, two hundred twenty million, one hundred twenty-two thousand, two hundred twelve".