1121000212 has 24 divisors (see below), whose sum is σ = 2003498280. Its totient is φ = 548697600.

The previous prime is 1121000161. The next prime is 1121000219. The reversal of 1121000212 is 2120001211.

It can be written as a sum of positive squares in 4 ways, for example, as 422138116 + 698862096 = 20546^2 + 26436^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121000219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20368 + ... + 51544.

It is an arithmetic number, because the mean of its divisors is an integer number (83479095).

Almost surely, 2^1121000212 is an apocalyptic number.

It is an amenable number.

1121000212 is a deficient number, since it is larger than the sum of its proper divisors (882498068).

1121000212 is a wasteful number, since it uses less digits than its factorization.

1121000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31371 (or 31369 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1121000212 is about 33481.3412515090. The cubic root of 1121000212 is about 1038.8078709438.

Adding to 1121000212 its reverse (2120001211), we get a palindrome (3241001423).

Subtracting 1121000212 from its reverse (2120001211), we obtain a palindrome (999000999).

The spelling of 1121000212 in words is "one billion, one hundred twenty-one million, two hundred twelve", and thus it is an aban number.