11101201222212 has 36 divisors (see below), whose sum is σ = 28713959754480. Its totient is φ = 3614344583472.

The previous prime is 11101201222207. The next prime is 11101201222213. The reversal of 11101201222212 is 21222210210111.

11101201222212 is a `hidden beast` number, since 1 + 110 + 120 + 1 + 222 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11101201222213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3585657762 + ... + 3585660857.

It is an arithmetic number, because the mean of its divisors is an integer number (797609993180).

Almost surely, 2^{11101201222212} is an apocalyptic number.

11101201222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11101201222212 is an abundant number, since it is smaller than the sum of its proper divisors (17612758532268).

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

11101201222212 is a wasteful number, since it uses less digits than its factorization.

11101201222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7171318672 (or 7171318667 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11101201222212 its reverse (21222210210111), we get a palindrome (32323411432323).

It can be divided in two parts, 1110120 and 1222212, that added together give a palindrome (2332332).

The spelling of 11101201222212 in words is "eleven trillion, one hundred one billion, two hundred one million, two hundred twenty-two thousand, two hundred twelve".