2221020022111 has 8 divisors (see below), whose sum is σ = 2422955335248. Its totient is φ = 2019088776000.

The previous prime is 2221020022087. The next prime is 2221020022127. The reversal of 2221020022111 is 1112200201222.

It is a happy number.

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-2221020022111 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 (2221020022181) 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 7 ways as a sum of consecutive naturals, for example, 187081 + ... + 2115901.

It is an arithmetic number, because the mean of its divisors is an integer number (302869416906).

Almost surely, 2^{2221020022111} is an apocalyptic number.

2221020022111 is a deficient number, since it is larger than the sum of its proper divisors (201935313137).

2221020022111 is a wasteful number, since it uses less digits than its factorization.

2221020022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033513.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2221020022111 its reverse (1112200201222), we get a palindrome (3333220223333).

The spelling of 2221020022111 in words is "two trillion, two hundred twenty-one billion, twenty million, twenty-two thousand, one hundred eleven".