111200121201212 has 6 divisors (see below), whose sum is σ = 194600212102128. Its totient is φ = 55600060600604.

The previous prime is 111200121201161. The next prime is 111200121201227. The reversal of 111200121201212 is 212102121002111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13900015150148 + ... + 13900015150155.

It is an arithmetic number, because the mean of its divisors is an integer number (32433368683688).

Almost surely, 2^{111200121201212} is an apocalyptic number.

It is an amenable number.

111200121201212 is a deficient number, since it is larger than the sum of its proper divisors (83400090900916).

111200121201212 is a wasteful number, since it uses less digits than its factorization.

111200121201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27800030300307 (or 27800030300305 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111200121201212 its reverse (212102121002111), we get a palindrome (323302242203323).

The spelling of 111200121201212 in words is "one hundred eleven trillion, two hundred billion, one hundred twenty-one million, two hundred one thousand, two hundred twelve".