11211012210111 has 64 divisors (see below), whose sum is σ = 17593312911360. Its totient is φ = 6216061461120.

The previous prime is 11211012210067. The next prime is 11211012210131. The reversal of 11211012210111 is 11101221011211.

It is not a de Polignac number, because 11211012210111 - 2¹⁹ = 11211011685823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211012210131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 594455400 + ... + 594474258.

It is an arithmetic number, because the mean of its divisors is an integer number (274895514240).

Almost surely, 2^{11211012210111} is an apocalyptic number.

11211012210111 is a deficient number, since it is larger than the sum of its proper divisors (6382300701249).

11211012210111 is a wasteful number, since it uses less digits than its factorization.

11211012210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20964.

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

Adding to 11211012210111 its reverse (11101221011211), we get a palindrome (22312233221322).

The spelling of 11211012210111 in words is "eleven trillion, two hundred eleven billion, twelve million, two hundred ten thousand, one hundred eleven".