11211101010211 has 16 divisors (see below), whose sum is σ = 11895039793728. Its totient is φ = 10543676774400.

The previous prime is 11211101010199. The next prime is 11211101010223. The reversal of 11211101010211 is 11201010111211.

It is an interprime number because it is at equal distance from previous prime (11211101010199) and next prime (11211101010223).

It is a cyclic number.

It is not a de Polignac number, because 11211101010211 - 2³⁷ = 11073662056739 is a prime.

It is a super-2 number, since 2×11211101010211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11211101010191 and 11211101010200.

It is not an unprimeable number, because it can be changed into a prime (11211101010251) 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, 1952115 + ... + 5121811.

It is an arithmetic number, because the mean of its divisors is an integer number (743439987108).

Almost surely, 2^{11211101010211} is an apocalyptic number.

11211101010211 is a deficient number, since it is larger than the sum of its proper divisors (683938783517).

11211101010211 is a wasteful number, since it uses less digits than its factorization.

11211101010211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172302.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11211101010211 its reverse (11201010111211), we get a palindrome (22412111121422).

The spelling of 11211101010211 in words is "eleven trillion, two hundred eleven billion, one hundred one million, ten thousand, two hundred eleven".