11121211102011 has 4 divisors (see below), whose sum is σ = 14828281469352. Its totient is φ = 7414140734672.

The previous prime is 11121211102009. The next prime is 11121211102093. The reversal of 11121211102011 is 11020111212111.

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 11121211102011 - 2¹ = 11121211102009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11121211102811) 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, 1853535183666 + ... + 1853535183671.

It is an arithmetic number, because the mean of its divisors is an integer number (3707070367338).

Almost surely, 2^{11121211102011} is an apocalyptic number.

11121211102011 is a deficient number, since it is larger than the sum of its proper divisors (3707070367341).

11121211102011 is an equidigital number, since it uses as much as digits as its factorization.

11121211102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707070367340.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11121211102011 its reverse (11020111212111), we get a palindrome (22141322314122).

The spelling of 11121211102011 in words is "eleven trillion, one hundred twenty-one billion, two hundred eleven million, one hundred two thousand, eleven".