122220220312 has 16 divisors (see below), whose sum is σ = 236555265600. Its totient is φ = 59138816160.

The previous prime is 122220220301. The next prime is 122220220313. The reversal of 122220220312 is 213022022221.

It is a super-2 number, since 2×122220220312² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122220220312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122220220313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246411487 + ... + 246411982.

It is an arithmetic number, because the mean of its divisors is an integer number (14784704100).

Almost surely, 2^122220220312 is an apocalyptic number.

It is an amenable number.

122220220312 is a deficient number, since it is larger than the sum of its proper divisors (114335045288).

122220220312 is a wasteful number, since it uses less digits than its factorization.

122220220312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492823506 (or 492823502 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 122220220312 its reverse (213022022221), we get a palindrome (335242242533).

The spelling of 122220220312 in words is "one hundred twenty-two billion, two hundred twenty million, two hundred twenty thousand, three hundred twelve".