1111000000212 has 24 divisors (see below), whose sum is σ = 2880370371200. Its totient is φ = 370333333368.

The previous prime is 1111000000211. The next prime is 1111000000241. The reversal of 1111000000212 is 2120000001111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1111000000194 and 1111000000203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111000000211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5143518412 + ... + 5143518627.

Almost surely, 2^{1111000000212} is an apocalyptic number.

1111000000212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1111000000212 is an abundant number, since it is smaller than the sum of its proper divisors (1769370370988).

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

1111000000212 is a wasteful number, since it uses less digits than its factorization.

1111000000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10287037052 (or 10287037044 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1111000000212 its reverse (2120000001111), we get a palindrome (3231000001323).

The spelling of 1111000000212 in words is "one trillion, one hundred eleven billion, two hundred twelve", and thus it is an aban number.