11200120212111 has 4 divisors (see below), whose sum is σ = 14933493616152. Its totient is φ = 7466746808072.

The previous prime is 11200120212037. The next prime is 11200120212131. The reversal of 11200120212111 is 11121202100211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11200120212111 - 2²⁶ = 11200053103247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200120212131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1866686702016 + ... + 1866686702021.

It is an arithmetic number, because the mean of its divisors is an integer number (3733373404038).

Almost surely, 2^{11200120212111} is an apocalyptic number.

11200120212111 is a deficient number, since it is larger than the sum of its proper divisors (3733373404041).

11200120212111 is an equidigital number, since it uses as much as digits as its factorization.

11200120212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3733373404040.

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

Adding to 11200120212111 its reverse (11121202100211), we get a palindrome (22321322312322).

The spelling of 11200120212111 in words is "eleven trillion, two hundred billion, one hundred twenty million, two hundred twelve thousand, one hundred eleven".