2210221111111 has 4 divisors (see below), whose sum is σ = 2380238119672. Its totient is φ = 2040204102552.

The previous prime is 2210221111103. The next prime is 2210221111177. The reversal of 2210221111111 is 1111111220122.

2210221111111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2210221111111 - 2³ = 2210221111103 is a prime.

It is a super-3 number, since 3×2210221111111³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

2210221111111 is a modest number, since divided by 1111111 gives 221022 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210221111211) 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, 85008504261 + ... + 85008504286.

It is an arithmetic number, because the mean of its divisors is an integer number (595059529918).

Almost surely, 2^{2210221111111} is an apocalyptic number.

2210221111111 is a deficient number, since it is larger than the sum of its proper divisors (170017008561).

2210221111111 is a wasteful number, since it uses less digits than its factorization.

2210221111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170017008560.

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

Adding to 2210221111111 its reverse (1111111220122), we get a palindrome (3321332331233).

The spelling of 2210221111111 in words is "two trillion, two hundred ten billion, two hundred twenty-one million, one hundred eleven thousand, one hundred eleven".