2221100020111 has 6 divisors (see below), whose sum is σ = 2583728594880. Its totient is φ = 1903800017196.

The previous prime is 2221100020109. The next prime is 2221100020141. The reversal of 2221100020111 is 1110200011222.

It is not a de Polignac number, because 2221100020111 - 2¹ = 2221100020109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221100020091 and 2221100020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221100020141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22664285871 + ... + 22664285968.

It is an arithmetic number, because the mean of its divisors is an integer number (430621432480).

Almost surely, 2^{2221100020111} is an apocalyptic number.

2221100020111 is a deficient number, since it is larger than the sum of its proper divisors (362628574769).

2221100020111 is an equidigital number, since it uses as much as digits as its factorization.

2221100020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45328571853 (or 45328571846 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2221100020111 its reverse (1110200011222), we get a palindrome (3331300031333).

The spelling of 2221100020111 in words is "two trillion, two hundred twenty-one billion, one hundred million, twenty thousand, one hundred eleven".