1201222112 has 24 divisors (see below), whose sum is σ = 2374124256. Its totient is φ = 598269952.

The previous prime is 1201222109. The next prime is 1201222117. The reversal of 1201222112 is 2112221021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201222117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64808 + ... + 81255.

It is an arithmetic number, because the mean of its divisors is an integer number (98921844).

Almost surely, 2^1201222112 is an apocalyptic number.

It is an amenable number.

1201222112 is a deficient number, since it is larger than the sum of its proper divisors (1172902144).

1201222112 is a wasteful number, since it uses less digits than its factorization.

1201222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146330 (or 146322 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1201222112 is about 34658.6513297907. The cubic root of 1201222112 is about 1063.0191933953.

Adding to 1201222112 its reverse (2112221021), we get a palindrome (3313443133).

The spelling of 1201222112 in words is "one billion, two hundred one million, two hundred twenty-two thousand, one hundred twelve".