11112021122112 has 98 divisors (see below), whose sum is σ = 33060501767358. Its totient is φ = 3704007025152.

The previous prime is 11112021122063. The next prime is 11112021122119. The reversal of 11112021122112 is 21122112021111.

It is a happy number.

11112021122112 is a `hidden beast` number, since 111 + 120 + 211 + 221 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10604245165056 + 507775957056 = 3256416^2 + 712584^2 .

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 (11112021122119) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 119037933 + ... + 119131244.

Almost surely, 2^{11112021122112} is an apocalyptic number.

11112021122112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11112021122112 is an abundant number, since it is smaller than the sum of its proper divisors (21948480645246).

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

11112021122112 is an frugal number, since it uses more digits than its factorization.

11112021122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238169207 (or 238169182 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11112021122112 its reverse (21122112021111), we get a palindrome (32234133143223).

The spelling of 11112021122112 in words is "eleven trillion, one hundred twelve billion, twenty-one million, one hundred twenty-two thousand, one hundred twelve".