1200122212216 has 32 divisors (see below), whose sum is σ = 2385694080000. Its totient is φ = 564028932096.

The previous prime is 1200122212181. The next prime is 1200122212217. The reversal of 1200122212216 is 6122122210021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200122212217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5633016 + ... + 5842183.

It is an arithmetic number, because the mean of its divisors is an integer number (74552940000).

Almost surely, 2^{1200122212216} is an apocalyptic number.

It is an amenable number.

1200122212216 is a deficient number, since it is larger than the sum of its proper divisors (1185571867784).

1200122212216 is a wasteful number, since it uses less digits than its factorization.

1200122212216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11475991 (or 11475987 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1200122212216 its reverse (6122122210021), we get a palindrome (7322244422237).

The spelling of 1200122212216 in words is "one trillion, two hundred billion, one hundred twenty-two million, two hundred twelve thousand, two hundred sixteen".