11101222212 has 24 divisors (see below), whose sum is σ = 26089207200. Its totient is φ = 3673785216.

The previous prime is 11101222211. The next prime is 11101222213. The reversal of 11101222212 is 21222210111.

11101222212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11101222211) and next prime (11101222213).

It is a junction number, because it is equal to n+sod(n) for n = 11101222191 and 11101222200.

It is not an unprimeable number, because it can be changed into a prime (11101222211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3326037 + ... + 3329372.

It is an arithmetic number, because the mean of its divisors is an integer number (1087050300).

Almost surely, 2^11101222212 is an apocalyptic number.

11101222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11101222212 is an abundant number, since it is smaller than the sum of its proper divisors (14987984988).

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

11101222212 is a wasteful number, since it uses less digits than its factorization.

11101222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6655555 (or 6655553 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11101222212 its reverse (21222210111), we get a palindrome (32323432323).

The spelling of 11101222212 in words is "eleven billion, one hundred one million, two hundred twenty-two thousand, two hundred twelve".