1121131232212 has 6 divisors (see below), whose sum is σ = 1961979656378. Its totient is φ = 560565616104.

The previous prime is 1121131232203. The next prime is 1121131232231. The reversal of 1121131232212 is 2122321311211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1034504615236 + 86626616976 = 1017106^2 + 294324^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 140141404023 + ... + 140141404030.

Almost surely, 2^{1121131232212} is an apocalyptic number.

It is an amenable number.

1121131232212 is a deficient number, since it is larger than the sum of its proper divisors (840848424166).

1121131232212 is a wasteful number, since it uses less digits than its factorization.

1121131232212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280282808057 (or 280282808055 counting only the distinct ones).

The product of its digits is 288, while the sum is 22.

Adding to 1121131232212 its reverse (2122321311211), we get a palindrome (3243452543423).

The spelling of 1121131232212 in words is "one trillion, one hundred twenty-one billion, one hundred thirty-one million, two hundred thirty-two thousand, two hundred twelve".