1121921802 has 24 divisors (see below), whose sum is σ = 2443053600. Its totient is φ = 372093480.

The previous prime is 1121921791. The next prime is 1121921809. The reversal of 1121921802 is 2081291211.

It is not an unprimeable number, because it can be changed into a prime (1121921809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153024 + ... + 160187.

It is an arithmetic number, because the mean of its divisors is an integer number (101793900).

Almost surely, 2^1121921802 is an apocalyptic number.

1121921802 is an abundant number, since it is smaller than the sum of its proper divisors (1321131798).

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

1121921802 is a wasteful number, since it uses less digits than its factorization.

1121921802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313418 (or 313415 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 1121921802 is about 33495.1011642001. The cubic root of 1121921802 is about 1039.0924658094.

The spelling of 1121921802 in words is "one billion, one hundred twenty-one million, nine hundred twenty-one thousand, eight hundred two".