11112011220212 has 36 divisors (see below), whose sum is σ = 23951519990244. Its totient is φ = 4482155784960.

The previous prime is 11112011220203. The next prime is 11112011220341. The reversal of 11112011220212 is 21202211021111.

It can be written as a sum of positive squares in 2 ways, for example, as 7778889152356 + 3333122067856 = 2789066^2 + 1825684^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1667465339 + ... + 1667472002.

It is an arithmetic number, because the mean of its divisors is an integer number (665319999729).

Almost surely, 2^{11112011220212} is an apocalyptic number.

It is an amenable number.

11112011220212 is an abundant number, since it is smaller than the sum of its proper divisors (12839508770032).

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

11112011220212 is a wasteful number, since it uses less digits than its factorization.

11112011220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3334937376 (or 3334937367 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11112011220212 its reverse (21202211021111), we get a palindrome (32314222241323).

The spelling of 11112011220212 in words is "eleven trillion, one hundred twelve billion, eleven million, two hundred twenty thousand, two hundred twelve".