1121001002 has 16 divisors (see below), whose sum is σ = 1914121152. Its totient is φ = 487391520.

The previous prime is 1121001001. The next prime is 1121001023. The reversal of 1121001002 is 2001001211.

It is not an unprimeable number, because it can be changed into a prime (1121001001) 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, 1107203 + ... + 1108214.

It is an arithmetic number, because the mean of its divisors is an integer number (119632572).

Almost surely, 2^1121001002 is an apocalyptic number.

1121001002 is a deficient number, since it is larger than the sum of its proper divisors (793120150).

1121001002 is a wasteful number, since it uses less digits than its factorization.

1121001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215453.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1121001002 is about 33481.3530491227. The cubic root of 1121001002 is about 1038.8081149694.

Adding to 1121001002 its reverse (2001001211), we get a palindrome (3122002213).

The spelling of 1121001002 in words is "one billion, one hundred twenty-one million, one thousand, two".