1121213002 has 48 divisors (see below), whose sum is σ = 2230872840. Its totient is φ = 417457152.

The previous prime is 1121212999. The next prime is 1121213021. The reversal of 1121213002 is 2003121211.

It can be written as a sum of positive squares in 4 ways, for example, as 945624001 + 175589001 = 30751^2 + 13251^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 4227 + ... + 47542.

Almost surely, 2^1121213002 is an apocalyptic number.

1121213002 is a deficient number, since it is larger than the sum of its proper divisors (1109659838).

1121213002 is a wasteful number, since it uses less digits than its factorization.

1121213002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51815 (or 51808 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1121213002 is about 33484.5188408016. The cubic root of 1121213002 is about 1038.8735961594.

Adding to 1121213002 its reverse (2003121211), we get a palindrome (3124334213).

The spelling of 1121213002 in words is "one billion, one hundred twenty-one million, two hundred thirteen thousand, two".