121201110222112 has 48 divisors (see below), whose sum is σ = 240019648122240. Its totient is φ = 60244781084928.

The previous prime is 121201110222041. The next prime is 121201110222119. The reversal of 121201110222112 is 211222011102121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121201110222112.

It is not an unprimeable number, because it can be changed into a prime (121201110222119) 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, 12555162 + ... + 20000857.

It is an arithmetic number, because the mean of its divisors is an integer number (5000409335880).

Almost surely, 2^{121201110222112} is an apocalyptic number.

It is an amenable number.

121201110222112 is a deficient number, since it is larger than the sum of its proper divisors (118818537900128).

121201110222112 is a wasteful number, since it uses less digits than its factorization.

121201110222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32556713 (or 32556705 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121201110222112 its reverse (211222011102121), we get a palindrome (332423121324233).

The spelling of 121201110222112 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred ten million, two hundred twenty-two thousand, one hundred twelve".