11100112212 has 48 divisors (see below), whose sum is σ = 29685680640. Its totient is φ = 3162312672.

The previous prime is 11100112157. The next prime is 11100112249. The reversal of 11100112212 is 21221100111.

It is a super-2 number, since 2×11100112212² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161262 + ... + 219557.

It is an arithmetic number, because the mean of its divisors is an integer number (618451680).

Almost surely, 2^11100112212 is an apocalyptic number.

11100112212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11100112212 is an abundant number, since it is smaller than the sum of its proper divisors (18585568428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11100112212 is a wasteful number, since it uses less digits than its factorization.

11100112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381180 (or 381178 counting only the distinct ones).

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

Adding to 11100112212 its reverse (21221100111), we get a palindrome (32321212323).

The spelling of 11100112212 in words is "eleven billion, one hundred million, one hundred twelve thousand, two hundred twelve".