1121021006 has 8 divisors (see below), whose sum is σ = 1921750320. Its totient is φ = 480437568.

The previous prime is 1121020993. The next prime is 1121021093. The reversal of 1121021006 is 6001201211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 80072929 = 1121021006 / (1 + 1 + 2 + 1 + 0 + 2 + 1 + 0 + 0 + 6).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40036451 + ... + 40036478.

It is an arithmetic number, because the mean of its divisors is an integer number (240218790).

Almost surely, 2^1121021006 is an apocalyptic number.

1121021006 is a deficient number, since it is larger than the sum of its proper divisors (800729314).

1121021006 is an equidigital number, since it uses as much as digits as its factorization.

1121021006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80072938.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1121021006 is about 33481.6517812368. The cubic root of 1121021006 is about 1038.8142940284.

Adding to 1121021006 its reverse (6001201211), we get a palindrome (7122222217).

The spelling of 1121021006 in words is "one billion, one hundred twenty-one million, twenty-one thousand, six".