1121022002 has 16 divisors (see below), whose sum is σ = 1771224000. Its totient is φ = 530653680.

The previous prime is 1121021977. The next prime is 1121022011. The reversal of 1121022002 is 2002201211.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52499 + ... + 70697.

It is an arithmetic number, because the mean of its divisors is an integer number (110701500).

Almost surely, 2^1121022002 is an apocalyptic number.

1121022002 is a deficient number, since it is larger than the sum of its proper divisors (650201998).

1121022002 is a wasteful number, since it uses less digits than its factorization.

1121022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19841.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1121022002 is about 33481.6666550517. Note that the first 4 decimals coincide. The cubic root of 1121022002 is about 1038.8146016820.

Adding to 1121022002 its reverse (2002201211), we get a palindrome (3123223213).

The spelling of 1121022002 in words is "one billion, one hundred twenty-one million, twenty-two thousand, two".