121222025 has 6 divisors (see below), whose sum is σ = 150315342. Its totient is φ = 96977600.

The previous prime is 121222007. The next prime is 121222037. The reversal of 121222025 is 520222121.

It can be written as a sum of positive squares in 3 ways, for example, as 32410249 + 88811776 = 5693^2 + 9424^2 .

It is not a de Polignac number, because 121222025 - 2¹⁶ = 121156489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121221994 and 121222012.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2424416 + ... + 2424465.

It is an arithmetic number, because the mean of its divisors is an integer number (25052557).

Almost surely, 2^121222025 is an apocalyptic number.

It is an amenable number.

121222025 is a deficient number, since it is larger than the sum of its proper divisors (29093317).

121222025 is an equidigital number, since it uses as much as digits as its factorization.

121222025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4848891 (or 4848886 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 121222025 is about 11010.0874201797. The cubic root of 121222025 is about 494.9110815353.

Adding to 121222025 its reverse (520222121), we get a palindrome (641444146).

The spelling of 121222025 in words is "one hundred twenty-one million, two hundred twenty-two thousand, twenty-five".