11100212211 has 12 divisors (see below), whose sum is σ = 16268080136. Its totient is φ = 6727401120.

The previous prime is 11100212209. The next prime is 11100212257. The reversal of 11100212211 is 11221200111.

It is not a de Polignac number, because 11100212211 - 2¹ = 11100212209 is a prime.

It is a super-2 number, since 2×11100212211² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11100212411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15289186 + ... + 15289911.

Almost surely, 2^11100212211 is an apocalyptic number.

11100212211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11100212211 is a deficient number, since it is larger than the sum of its proper divisors (5167867925).

11100212211 is a wasteful number, since it uses less digits than its factorization.

11100212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30579122 (or 30579111 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11100212211 its reverse (11221200111), we get a palindrome (22321412322).

The spelling of 11100212211 in words is "eleven billion, one hundred million, two hundred twelve thousand, two hundred eleven".