121016425 has 6 divisors (see below), whose sum is σ = 150060398. Its totient is φ = 96813120.

The previous prime is 121016369. The next prime is 121016429. The reversal of 121016425 is 524610121.

It can be written as a sum of positive squares in 3 ways, for example, as 4613904 + 116402521 = 2148^2 + 10789^2 .

It is not a de Polignac number, because 121016425 - 2²³ = 112627817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121016396 and 121016405.

It is not an unprimeable number, because it can be changed into a prime (121016429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2420304 + ... + 2420353.

Almost surely, 2^121016425 is an apocalyptic number.

It is an amenable number.

121016425 is a deficient number, since it is larger than the sum of its proper divisors (29043973).

121016425 is an equidigital number, since it uses as much as digits as its factorization.

121016425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4840667 (or 4840662 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 121016425 is about 11000.7465655745. The cubic root of 121016425 is about 494.6311233361.

Adding to 121016425 its reverse (524610121), we get a palindrome (645626546).

The spelling of 121016425 in words is "one hundred twenty-one million, sixteen thousand, four hundred twenty-five".