11102221020111 has 64 divisors (see below), whose sum is σ = 16584426915840. Its totient is φ = 6562460390400.

The previous prime is 11102221020101. The next prime is 11102221020131. The reversal of 11102221020111 is 11102012220111.

It is a happy number.

It is not a de Polignac number, because 11102221020111 - 2⁷ = 11102221019983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102221020101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 64910941 + ... + 65081753.

It is an arithmetic number, because the mean of its divisors is an integer number (259131670560).

Almost surely, 2^{11102221020111} is an apocalyptic number.

11102221020111 is a deficient number, since it is larger than the sum of its proper divisors (5482205895729).

11102221020111 is a wasteful number, since it uses less digits than its factorization.

11102221020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171536.

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

Adding to 11102221020111 its reverse (11102012220111), we get a palindrome (22204233240222).

The spelling of 11102221020111 in words is "eleven trillion, one hundred two billion, two hundred twenty-one million, twenty thousand, one hundred eleven".