2221111211109 has 16 divisors (see below), whose sum is σ = 3389814124032. Its totient is φ = 1267232516208.

The previous prime is 2221111211107. The next prime is 2221111211117. The reversal of 2221111211109 is 9011121111222.

It is not a de Polignac number, because 2221111211109 - 2¹ = 2221111211107 is a prime.

It is a super-2 number, since 2×2221111211109² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221111211107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82231599 + ... + 82258604.

It is an arithmetic number, because the mean of its divisors is an integer number (211863382752).

Almost surely, 2^{2221111211109} is an apocalyptic number.

It is an amenable number.

2221111211109 is a deficient number, since it is larger than the sum of its proper divisors (1168702912923).

2221111211109 is a wasteful number, since it uses less digits than its factorization.

2221111211109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164490856.

The product of its (nonzero) digits is 144, while the sum is 24.

The spelling of 2221111211109 in words is "two trillion, two hundred twenty-one billion, one hundred eleven million, two hundred eleven thousand, one hundred nine".