1011221002211 has 4 divisors (see below), whose sum is σ = 1155681145392. Its totient is φ = 866760859032.

The previous prime is 1011221002201. The next prime is 1011221002249. The reversal of 1011221002211 is 1122001221101.

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

It is a cyclic number.

It is not a de Polignac number, because 1011221002211 - 2³⁰ = 1010147260387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011221002201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72230071580 + ... + 72230071593.

It is an arithmetic number, because the mean of its divisors is an integer number (288920286348).

Almost surely, 2^{1011221002211} is an apocalyptic number.

1011221002211 is a deficient number, since it is larger than the sum of its proper divisors (144460143181).

1011221002211 is an equidigital number, since it uses as much as digits as its factorization.

1011221002211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144460143180.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1011221002211 its reverse (1122001221101), we get a palindrome (2133222223312).

The spelling of 1011221002211 in words is "one trillion, eleven billion, two hundred twenty-one million, two thousand, two hundred eleven".