2221131110111 has 8 divisors (see below), whose sum is σ = 2352037604400. Its totient is φ = 2090252585088.

The previous prime is 2221131110063. The next prime is 2221131110137. The reversal of 2221131110111 is 1110111311222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221131110111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 2221131110111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221131110141) 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, 6828701 + ... + 7146566.

It is an arithmetic number, because the mean of its divisors is an integer number (294004700550).

Almost surely, 2^{2221131110111} is an apocalyptic number.

2221131110111 is a deficient number, since it is larger than the sum of its proper divisors (130906494289).

2221131110111 is a wasteful number, since it uses less digits than its factorization.

2221131110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13984633.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 2221131110111 its reverse (1110111311222), we get a palindrome (3331242421333).

The spelling of 2221131110111 in words is "two trillion, two hundred twenty-one billion, one hundred thirty-one million, one hundred ten thousand, one hundred eleven".