1001122220211 has 32 divisors (see below), whose sum is σ = 1447670423040. Its totient is φ = 613232964864.

The previous prime is 1001122220183. The next prime is 1001122220309. The reversal of 1001122220211 is 1120222211001.

It is not a de Polignac number, because 1001122220211 - 2⁷ = 1001122220083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001122220011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98175 + ... + 1418408.

It is an arithmetic number, because the mean of its divisors is an integer number (45239700720).

Almost surely, 2^{1001122220211} is an apocalyptic number.

1001122220211 is a deficient number, since it is larger than the sum of its proper divisors (446548202829).

1001122220211 is a wasteful number, since it uses less digits than its factorization.

1001122220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516955.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1001122220211 its reverse (1120222211001), we get a palindrome (2121344431212).

The spelling of 1001122220211 in words is "one trillion, one billion, one hundred twenty-two million, two hundred twenty thousand, two hundred eleven".