1121021196 has 24 divisors (see below), whose sum is σ = 2729443584. Its totient is φ = 357426960.

The previous prime is 1121021159. The next prime is 1121021197. The reversal of 1121021196 is 6911201211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1121021197) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2030560 + ... + 2031111.

It is an arithmetic number, because the mean of its divisors is an integer number (113726816).

Almost surely, 2^1121021196 is an apocalyptic number.

It is an amenable number.

1121021196 is an abundant number, since it is smaller than the sum of its proper divisors (1608422388).

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

1121021196 is a wasteful number, since it uses less digits than its factorization.

1121021196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4061701 (or 4061699 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 24.

The square root of 1121021196 is about 33481.6546186117. The cubic root of 1121021196 is about 1038.8143527173.

The spelling of 1121021196 in words is "one billion, one hundred twenty-one million, twenty-one thousand, one hundred ninety-six".