2221202122111 has 8 divisors (see below), whose sum is σ = 2538536422400. Its totient is φ = 1903872749688.

The previous prime is 2221202122109. The next prime is 2221202122121. The reversal of 2221202122111 is 1112212021222.

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

It is not a de Polignac number, because 2221202122111 - 2¹ = 2221202122109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221202122121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209511 + ... + 2118088.

It is an arithmetic number, because the mean of its divisors is an integer number (317317052800).

Almost surely, 2^{2221202122111} is an apocalyptic number.

2221202122111 is a deficient number, since it is larger than the sum of its proper divisors (317334300289).

2221202122111 is a wasteful number, since it uses less digits than its factorization.

2221202122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463933.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2221202122111 its reverse (1112212021222), we get a palindrome (3333414143333).

The spelling of 2221202122111 in words is "two trillion, two hundred twenty-one billion, two hundred two million, one hundred twenty-two thousand, one hundred eleven".