121112110212 has 96 divisors (see below), whose sum is σ = 294870576000. Its totient is φ = 38653148160.

The previous prime is 121112110181. The next prime is 121112110237. The reversal of 121112110212 is 212011211121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121112110191 and 121112110200.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44055414 + ... + 44058162.

It is an arithmetic number, because the mean of its divisors is an integer number (3071568500).

Almost surely, 2^121112110212 is an apocalyptic number.

121112110212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121112110212 is an abundant number, since it is smaller than the sum of its proper divisors (173758465788).

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

121112110212 is a wasteful number, since it uses less digits than its factorization.

121112110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4341 (or 4339 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121112110212 its reverse (212011211121), we get a palindrome (333123321333).

The spelling of 121112110212 in words is "one hundred twenty-one billion, one hundred twelve million, one hundred ten thousand, two hundred twelve".