1001220111002 has 32 divisors (see below), whose sum is σ = 1576949472000. Its totient is φ = 475844731648.

The previous prime is 1001220110983. The next prime is 1001220111007. The reversal of 1001220111002 is 2001110221001.

It is not an unprimeable number, because it can be changed into a prime (1001220111007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31088324 + ... + 31120512.

It is an arithmetic number, because the mean of its divisors is an integer number (49279671000).

Almost surely, 2^{1001220111002} is an apocalyptic number.

1001220111002 is a deficient number, since it is larger than the sum of its proper divisors (575729360998).

1001220111002 is a wasteful number, since it uses less digits than its factorization.

1001220111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36430.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1001220111002 its reverse (2001110221001), we get a palindrome (3002330332003).

The spelling of 1001220111002 in words is "one trillion, one billion, two hundred twenty million, one hundred eleven thousand, two".