2221120111101 has 16 divisors (see below), whose sum is σ = 3201614577600. Its totient is φ = 1364898843648.

The previous prime is 2221120111081. The next prime is 2221120111103. The reversal of 2221120111101 is 1011110211222.

It is a happy number.

It is not a de Polignac number, because 2221120111101 - 2¹⁹ = 2221119586813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221120111103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526579236 + ... + 526583453.

It is an arithmetic number, because the mean of its divisors is an integer number (200100911100).

Almost surely, 2^{2221120111101} is an apocalyptic number.

It is an amenable number.

2221120111101 is a deficient number, since it is larger than the sum of its proper divisors (980494466499).

2221120111101 is a wasteful number, since it uses less digits than its factorization.

2221120111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053162748.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2221120111101 its reverse (1011110211222), we get a palindrome (3232230322323).

The spelling of 2221120111101 in words is "two trillion, two hundred twenty-one billion, one hundred twenty million, one hundred eleven thousand, one hundred one".