1121332212212 has 18 divisors (see below), whose sum is σ = 2051359641618. Its totient is φ = 536289317872.

The previous prime is 1121332212197. The next prime is 1121332212223. The reversal of 1121332212212 is 2122122331211.

It can be written as a sum of positive squares in only one way, i.e., 959917900516 + 161414311696 = 979754^2 + 401764^2 .

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 264962963 + ... + 264967194.

Almost surely, 2^{1121332212212} is an apocalyptic number.

It is an amenable number.

1121332212212 is a deficient number, since it is larger than the sum of its proper divisors (930027429406).

1121332212212 is a wasteful number, since it uses less digits than its factorization.

1121332212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529930207 (or 529930182 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 1121332212212 its reverse (2122122331211), we get a palindrome (3243454543423).

The spelling of 1121332212212 in words is "one trillion, one hundred twenty-one billion, three hundred thirty-two million, two hundred twelve thousand, two hundred twelve".