1121711612 has 96 divisors (see below), whose sum is σ = 2430425088. Its totient is φ = 442128384.

The previous prime is 1121711611. The next prime is 1121711621. The reversal of 1121711612 is 2161171211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121711611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6716753 + ... + 6716919.

It is an arithmetic number, because the mean of its divisors is an integer number (25316928).

Almost surely, 2^1121711612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121711612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1215212544).

1121711612 is an abundant number, since it is smaller than the sum of its proper divisors (1308713476).

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

1121711612 is a wasteful number, since it uses less digits than its factorization.

1121711612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 433 counting only the distinct ones).

The product of its digits is 168, while the sum is 23.

The square root of 1121711612 is about 33491.9633942234. The cubic root of 1121711612 is about 1039.0275710649.

Adding to 1121711612 its reverse (2161171211), we get a palindrome (3282882823).

The spelling of 1121711612 in words is "one billion, one hundred twenty-one million, seven hundred eleven thousand, six hundred twelve".