11212012122210 has 32 divisors (see below), whose sum is σ = 29898698993280. Its totient is φ = 2989869899184.

The previous prime is 11212012122197. The next prime is 11212012122217. The reversal of 11212012122210 is 1222121021211.

11212012122210 is a `hidden beast` number, since 11 + 21 + 201 + 212 + 221 + 0 = 666.

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 (11212012122217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20762985142 + ... + 20762985681.

It is an arithmetic number, because the mean of its divisors is an integer number (934334343540).

Almost surely, 2^{11212012122210} is an apocalyptic number.

11212012122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11212012122210 is an abundant number, since it is smaller than the sum of its proper divisors (18686686871070).

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

11212012122210 is a wasteful number, since it uses less digits than its factorization.

11212012122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41525970839 (or 41525970833 counting only the distinct ones).

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

Adding to 11212012122210 its reverse (1222121021211), we get a palindrome (12434133143421).

The spelling of 11212012122210 in words is "eleven trillion, two hundred twelve billion, twelve million, one hundred twenty-two thousand, two hundred ten".