121112112212 has 24 divisors (see below), whose sum is σ = 260856857856. Its totient is φ = 47912483808.

The previous prime is 121112112211. The next prime is 121112112287. The reversal of 121112112212 is 212211211121.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112112211) 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, 166362428 + ... + 166363155.

It is an arithmetic number, because the mean of its divisors is an integer number (10869035744).

Almost surely, 2^121112112212 is an apocalyptic number.

It is an amenable number.

121112112212 is an abundant number, since it is smaller than the sum of its proper divisors (139744745644).

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

121112112212 is a wasteful number, since it uses less digits than its factorization.

121112112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332725607 (or 332725605 counting only the distinct ones).

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

Adding to 121112112212 its reverse (212211211121), we get a palindrome (333323323333).

The spelling of 121112112212 in words is "one hundred twenty-one billion, one hundred twelve million, one hundred twelve thousand, two hundred twelve".