2221021110011 has 4 divisors (see below), whose sum is σ = 2422932120024. Its totient is φ = 2019110100000.

The previous prime is 2221021109999. The next prime is 2221021110079. The reversal of 2221021110011 is 1100111201222.

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 2221021110011 - 2¹⁸ = 2221020847867 is a prime.

It is a super-2 number, since 2×2221021110011² (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 (2221021113011) 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 3 ways as a sum of consecutive naturals, for example, 100955504990 + ... + 100955505011.

It is an arithmetic number, because the mean of its divisors is an integer number (605733030006).

Almost surely, 2^{2221021110011} is an apocalyptic number.

2221021110011 is a deficient number, since it is larger than the sum of its proper divisors (201911010013).

2221021110011 is a wasteful number, since it uses less digits than its factorization.

2221021110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201911010012.

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

Adding to 2221021110011 its reverse (1100111201222), we get a palindrome (3321132311233).

The spelling of 2221021110011 in words is "two trillion, two hundred twenty-one billion, twenty-one million, one hundred ten thousand, eleven".