2221110121211 has 8 divisors (see below), whose sum is σ = 2228616720048. Its totient is φ = 2213608320000.

The previous prime is 2221110121193. The next prime is 2221110121247. The reversal of 2221110121211 is 1121210111222.

2221110121211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2221110121211 - 2²⁶ = 2221043012347 is a prime.

It is a super-2 number, since 2×2221110121211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2221110121211.

It is not an unprimeable number, because it can be changed into a prime (2221113121211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270710 + ... + 2124971.

It is an arithmetic number, because the mean of its divisors is an integer number (278577090006).

Almost surely, 2^{2221110121211} is an apocalyptic number.

2221110121211 is a deficient number, since it is larger than the sum of its proper divisors (7506598837).

2221110121211 is a wasteful number, since it uses less digits than its factorization.

2221110121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398813.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2221110121211 its reverse (1121210111222), we get a palindrome (3342320232433).

The spelling of 2221110121211 in words is "two trillion, two hundred twenty-one billion, one hundred ten million, one hundred twenty-one thousand, two hundred eleven".