121222011112 has 64 divisors (see below), whose sum is σ = 253618128000. Its totient is φ = 53981300736.

The previous prime is 121222011103. The next prime is 121222011137. The reversal of 121222011112 is 211110222121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2265564 + ... + 2318452.

It is an arithmetic number, because the mean of its divisors is an integer number (3962783250).

Almost surely, 2^121222011112 is an apocalyptic number.

It is an amenable number.

121222011112 is an abundant number, since it is smaller than the sum of its proper divisors (132396116888).

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

121222011112 is a wasteful number, since it uses less digits than its factorization.

121222011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53818 (or 53814 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121222011112 its reverse (211110222121), we get a palindrome (332332233233).

The spelling of 121222011112 in words is "one hundred twenty-one billion, two hundred twenty-two million, eleven thousand, one hundred twelve".