2221002012111 has 16 divisors (see below), whose sum is σ = 3186934424928. Its totient is φ = 1370724480000.

The previous prime is 2221002012011. The next prime is 2221002012113. The reversal of 2221002012111 is 1112102001222.

It is not a de Polignac number, because 2221002012111 - 2¹¹ = 2221002010063 is a prime.

It is a super-2 number, since 2×2221002012111² (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 (2221002012113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356956390 + ... + 356962611.

It is an arithmetic number, because the mean of its divisors is an integer number (199183401558).

Almost surely, 2^{2221002012111} is an apocalyptic number.

2221002012111 is a deficient number, since it is larger than the sum of its proper divisors (965932412817).

2221002012111 is a wasteful number, since it uses less digits than its factorization.

2221002012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713919082.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2221002012111 its reverse (1112102001222), we get a palindrome (3333104013333).

The spelling of 2221002012111 in words is "two trillion, two hundred twenty-one billion, two million, twelve thousand, one hundred eleven".