1121111200212 has 24 divisors (see below), whose sum is σ = 2622139746912. Its totient is φ = 372816074400.

The previous prime is 1121111200127. The next prime is 1121111200241. The reversal of 1121111200212 is 2120021111211.

It is a happy number.

It is a super-2 number, since 2×1121111200212² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121111200191 and 1121111200200.

It is a congruent number.

It is an unprimeable number.

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, 110952114 + ... + 110962217.

It is an arithmetic number, because the mean of its divisors is an integer number (109255822788).

Almost surely, 2^{1121111200212} is an apocalyptic number.

1121111200212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121111200212 is an abundant number, since it is smaller than the sum of its proper divisors (1501028546700).

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

1121111200212 is a wasteful number, since it uses less digits than its factorization.

1121111200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221914759 (or 221914757 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1121111200212 its reverse (2120021111211), we get a palindrome (3241132311423).

The spelling of 1121111200212 in words is "one trillion, one hundred twenty-one billion, one hundred eleven million, two hundred thousand, two hundred twelve".