11212021010111 has 16 divisors (see below), whose sum is σ = 11589252958080. Its totient is φ = 10841042860800.

The previous prime is 11212021010083. The next prime is 11212021010159. The reversal of 11212021010111 is 11101012021211.

It is not a de Polignac number, because 11212021010111 - 2³⁴ = 11194841140927 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 (11212021010161) 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, 414776 + ... + 4753533.

It is an arithmetic number, because the mean of its divisors is an integer number (724328309880).

Almost surely, 2^{11212021010111} is an apocalyptic number.

11212021010111 is a deficient number, since it is larger than the sum of its proper divisors (377231947969).

11212021010111 is a wasteful number, since it uses less digits than its factorization.

11212021010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5168914.

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

Adding to 11212021010111 its reverse (11101012021211), we get a palindrome (22313033031322).

The spelling of 11212021010111 in words is "eleven trillion, two hundred twelve billion, twenty-one million, ten thousand, one hundred eleven".