1121220006 has 24 divisors (see below), whose sum is σ = 2382111240. Its totient is φ = 351754752.

The previous prime is 1121219987. The next prime is 1121220007. The reversal of 1121220006 is 6000221211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121220007) 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, 321571 + ... + 325038.

It is an arithmetic number, because the mean of its divisors is an integer number (99254635).

Almost surely, 2^1121220006 is an apocalyptic number.

1121220006 is an abundant number, since it is smaller than the sum of its proper divisors (1260891234).

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

1121220006 is a wasteful number, since it uses less digits than its factorization.

1121220006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646648 (or 646631 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1121220006 is about 33484.6234262833. The cubic root of 1121220006 is about 1038.8757593688.

Adding to 1121220006 its reverse (6000221211), we get a palindrome (7121441217).

The spelling of 1121220006 in words is "one billion, one hundred twenty-one million, two hundred twenty thousand, six".