1201111242212 has 12 divisors (see below), whose sum is σ = 2402222484480. Its totient is φ = 514761960936.

The previous prime is 1201111242193. The next prime is 1201111242239. The reversal of 1201111242212 is 2122421111021.

1201111242212 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21448415012 + ... + 21448415067.

It is an arithmetic number, because the mean of its divisors is an integer number (200185207040).

Almost surely, 2^{1201111242212} is an apocalyptic number.

It is an amenable number.

1201111242212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1201111242212 is a wasteful number, since it uses less digits than its factorization.

1201111242212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42896830090 (or 42896830088 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 1201111242212 its reverse (2122421111021), we get a palindrome (3323532353233).

The spelling of 1201111242212 in words is "one trillion, two hundred one billion, one hundred eleven million, two hundred forty-two thousand, two hundred twelve".