1222120222112 has 12 divisors (see below), whose sum is σ = 2406049187346. Its totient is φ = 611060111040.

The previous prime is 1222120222109. The next prime is 1222120222117. The reversal of 1222120222112 is 2112220212221.

It can be written as a sum of positive squares in only one way, i.e., 728366661136 + 493753560976 = 853444^2 + 702676^2 .

It is not an unprimeable number, because it can be changed into a prime (1222120222117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19095628439 + ... + 19095628502.

Almost surely, 2^{1222120222112} is an apocalyptic number.

It is an amenable number.

1222120222112 is a deficient number, since it is larger than the sum of its proper divisors (1183928965234).

1222120222112 is an equidigital number, since it uses as much as digits as its factorization.

1222120222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38191256951 (or 38191256943 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1222120222112 its reverse (2112220212221), we get a palindrome (3334340434333).

The spelling of 1222120222112 in words is "one trillion, two hundred twenty-two billion, one hundred twenty million, two hundred twenty-two thousand, one hundred twelve".