11121112222002 has 24 divisors (see below), whose sum is σ = 24096090449340. Its totient is φ = 3706983976320.

The previous prime is 11121112221979. The next prime is 11121112222009. The reversal of 11121112222002 is 20022221112111.

11121112222002 is a `hidden beast` number, since 111 + 211 + 122 + 220 + 0 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9599469086601 + 1521643135401 = 3098301^2 + 1233549^2 .

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 (11121112222009) 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, 3158899 + ... + 5676342.

Almost surely, 2^{11121112222002} is an apocalyptic number.

11121112222002 is an abundant number, since it is smaller than the sum of its proper divisors (12974978227338).

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

11121112222002 is a wasteful number, since it uses less digits than its factorization.

11121112222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8905178 (or 8905175 counting only the distinct ones).

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

Adding to 11121112222002 its reverse (20022221112111), we get a palindrome (31143333334113).

The spelling of 11121112222002 in words is "eleven trillion, one hundred twenty-one billion, one hundred twelve million, two hundred twenty-two thousand, two".