121425250 has 16 divisors (see below), whose sum is σ = 227308536. Its totient is φ = 48570000.

The previous prime is 121425217. The next prime is 121425277. The reversal of 121425250 is 52524121.

It can be written as a sum of positive squares in 4 ways, for example, as 14447601 + 106977649 = 3801^2 + 10343^2 .

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, 242601 + ... + 243100.

Almost surely, 2^121425250 is an apocalyptic number.

121425250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121425250 is a deficient number, since it is larger than the sum of its proper divisors (105883286).

121425250 is an equidigital number, since it uses as much as digits as its factorization.

121425250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485718 (or 485708 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 121425250 is about 11019.3125919905. The cubic root of 121425250 is about 495.1874948668.

Adding to 121425250 its reverse (52524121), we get a palindrome (173949371).

The spelling of 121425250 in words is "one hundred twenty-one million, four hundred twenty-five thousand, two hundred fifty".