1121012122212 has 36 divisors (see below), whose sum is σ = 2833812706816. Its totient is φ = 373651827120.

The previous prime is 1121012122207. The next prime is 1121012122249. The reversal of 1121012122212 is 2122212101211.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54964 + ... + 1498347.

Almost surely, 2^{1121012122212} is an apocalyptic number.

1121012122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121012122212 is an abundant number, since it is smaller than the sum of its proper divisors (1712800584604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121012122212 is a wasteful number, since it uses less digits than its factorization.

1121012122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573368 (or 1573363 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1121012122212 its reverse (2122212101211), we get a palindrome (3243224223423).

The spelling of 1121012122212 in words is "one trillion, one hundred twenty-one billion, twelve million, one hundred twenty-two thousand, two hundred twelve".