121225116 has 48 divisors (see below), whose sum is σ = 288465408. Its totient is φ = 39614400.

The previous prime is 121225099. The next prime is 121225121. The reversal of 121225116 is 611522121.

It is a junction number, because it is equal to n+sod(n) for n = 121225092 and 121225101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223806 + ... + 224346.

It is an arithmetic number, because the mean of its divisors is an integer number (6009696).

Almost surely, 2^121225116 is an apocalyptic number.

It is an amenable number.

121225116 is an abundant number, since it is smaller than the sum of its proper divisors (167240292).

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

121225116 is a wasteful number, since it uses less digits than its factorization.

121225116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882 (or 880 counting only the distinct ones).

The product of its digits is 240, while the sum is 21.

The square root of 121225116 is about 11010.2277905591. The cubic root of 121225116 is about 494.9152880238.

Adding to 121225116 its reverse (611522121), we get a palindrome (732747237).

The spelling of 121225116 in words is "one hundred twenty-one million, two hundred twenty-five thousand, one hundred sixteen".