11111000212 has 12 divisors (see below), whose sum is σ = 20939962036. Its totient is φ = 5128153920.

The previous prime is 11111000119. The next prime is 11111000213. The reversal of 11111000212 is 21200011111.

It can be written as a sum of positive squares in 2 ways, for example, as 1924927876 + 9186072336 = 43874^2 + 95844^2 .

It is a super-2 number, since 2×11111000212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111000213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106836489 + ... + 106836592.

Almost surely, 2^11111000212 is an apocalyptic number.

It is an amenable number.

11111000212 is a deficient number, since it is larger than the sum of its proper divisors (9828961824).

11111000212 is a wasteful number, since it uses less digits than its factorization.

11111000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213673098 (or 213673096 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11111000212 its reverse (21200011111), we get a palindrome (32311011323).

The spelling of 11111000212 in words is "eleven billion, one hundred eleven million, two hundred twelve", and thus it is an aban number.