121204112 has 40 divisors (see below), whose sum is σ = 245978304. Its totient is φ = 57746304.

The previous prime is 121204103. The next prime is 121204121. The reversal of 121204112 is 211402121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121204103) and next prime (121204121).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136823 + ... + 137705.

Almost surely, 2^121204112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121204112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122989152).

121204112 is an abundant number, since it is smaller than the sum of its proper divisors (124774192).

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

121204112 is a wasteful number, since it uses less digits than its factorization.

121204112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287 (or 1281 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 121204112 is about 11009.2739088461. The cubic root of 121204112 is about 494.8867026352.

Adding to 121204112 its reverse (211402121), we get a palindrome (332606233).

The spelling of 121204112 in words is "one hundred twenty-one million, two hundred four thousand, one hundred twelve".