11112210012 has 24 divisors (see below), whose sum is σ = 25937323776. Its totient is φ = 3702808048.

The previous prime is 11112210007. The next prime is 11112210017. The reversal of 11112210012 is 21001221111.

It is an interprime number because it is at equal distance from previous prime (11112210007) and next prime (11112210017).

It is a super-2 number, since 2×11112210012² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 11112210012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112210017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120708 + ... + 191819.

It is an arithmetic number, because the mean of its divisors is an integer number (1080721824).

Almost surely, 2^11112210012 is an apocalyptic number.

11112210012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11112210012 is an abundant number, since it is smaller than the sum of its proper divisors (14825113764).

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

11112210012 is a wasteful number, since it uses less digits than its factorization.

11112210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315497 (or 315495 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11112210012 its reverse (21001221111), we get a palindrome (32113431123).

The spelling of 11112210012 in words is "eleven billion, one hundred twelve million, two hundred ten thousand, twelve".