11211202001111 has 24 divisors (see below), whose sum is σ = 13190301195984. Its totient is φ = 9500316940800.

The previous prime is 11211202001089. The next prime is 11211202001143. The reversal of 11211202001111 is 11110020211211.

It is not a de Polignac number, because 11211202001111 - 2¹⁸ = 11211201738967 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 (11211202001171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1647656 + ... + 5013698.

It is an arithmetic number, because the mean of its divisors is an integer number (549595883166).

Almost surely, 2^{11211202001111} is an apocalyptic number.

11211202001111 is a deficient number, since it is larger than the sum of its proper divisors (1979099194873).

11211202001111 is a wasteful number, since it uses less digits than its factorization.

11211202001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366831 (or 3366824 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11211202001111 its reverse (11110020211211), we get a palindrome (22321222212322).

The spelling of 11211202001111 in words is "eleven trillion, two hundred eleven billion, two hundred two million, one thousand, one hundred eleven".