11212220202012 has 36 divisors (see below), whose sum is σ = 29319311450520. Its totient is φ = 3608530639392.

The previous prime is 11212220201893. The next prime is 11212220202019. The reversal of 11212220202012 is 21020202221211.

It is a happy number.

11212220202012 is a `hidden beast` number, since 11 + 212 + 220 + 20 + 201 + 2 = 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212220202019) 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, 5369836218 + ... + 5369838305.

It is an arithmetic number, because the mean of its divisors is an integer number (814425318070).

Almost surely, 2^{11212220202012} is an apocalyptic number.

11212220202012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11212220202012 is an abundant number, since it is smaller than the sum of its proper divisors (18107091248508).

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

11212220202012 is a wasteful number, since it uses less digits than its factorization.

11212220202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10739674562 (or 10739674557 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11212220202012 its reverse (21020202221211), we get a palindrome (32232422423223).

The spelling of 11212220202012 in words is "eleven trillion, two hundred twelve billion, two hundred twenty million, two hundred two thousand, twelve".