1001101220211 has 4 divisors (see below), whose sum is σ = 1334801626952. Its totient is φ = 667400813472.

The previous prime is 1001101220209. The next prime is 1001101220227. The reversal of 1001101220211 is 1120221011001.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1001101220211 - 2¹ = 1001101220209 is a prime.

It is a super-2 number, since 2×1001101220211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001101220611) 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 3 ways as a sum of consecutive naturals, for example, 166850203366 + ... + 166850203371.

It is an arithmetic number, because the mean of its divisors is an integer number (333700406738).

Almost surely, 2^{1001101220211} is an apocalyptic number.

1001101220211 is a deficient number, since it is larger than the sum of its proper divisors (333700406741).

1001101220211 is an equidigital number, since it uses as much as digits as its factorization.

1001101220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333700406740.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1001101220211 its reverse (1120221011001), we get a palindrome (2121322231212).

The spelling of 1001101220211 in words is "one trillion, one billion, one hundred one million, two hundred twenty thousand, two hundred eleven".