11202111111111 has 16 divisors (see below), whose sum is σ = 15068593762560. Its totient is φ = 7401853612160.

The previous prime is 11202111111073. The next prime is 11202111111119. The reversal of 11202111111111 is 11111111120211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11202111111111 - 2⁹ = 11202111110599 is a prime.

11202111111111 is a modest number, since divided by 11111111 gives 112021 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202111111119) 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, 21156166 + ... + 21679196.

It is an arithmetic number, because the mean of its divisors is an integer number (941787110160).

Almost surely, 2^{11202111111111} is an apocalyptic number.

11202111111111 is a deficient number, since it is larger than the sum of its proper divisors (3866482651449).

11202111111111 is a wasteful number, since it uses less digits than its factorization.

11202111111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586326.

The product of its (nonzero) digits is 4, while the sum is 15.

Adding to 11202111111111 its reverse (11111111120211), we get a palindrome (22313222231322).

It can be divided in two parts, 1120211 and 1111111, that multiplied together give a palindrome (1244678764421).

The spelling of 11202111111111 in words is "eleven trillion, two hundred two billion, one hundred eleven million, one hundred eleven thousand, one hundred eleven".