121212050 has 12 divisors (see below), whose sum is σ = 225454506. Its totient is φ = 48484800.

The previous prime is 121212017. The next prime is 121212071. The reversal of 121212050 is 50212121.

It can be written as a sum of positive squares in 3 ways, for example, as 79905721 + 41306329 = 8939^2 + 6427^2 .

It is a super-2 number, since 2×121212050² = 29384722130405000, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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, 1212071 + ... + 1212170.

Almost surely, 2^121212050 is an apocalyptic number.

121212050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121212050 is a deficient number, since it is larger than the sum of its proper divisors (104242456).

121212050 is a wasteful number, since it uses less digits than its factorization.

121212050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2424253 (or 2424248 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 121212050 is about 11009.6344171821. The cubic root of 121212050 is about 494.8975062425.

Adding to 121212050 its reverse (50212121), we get a palindrome (171424171).

The spelling of 121212050 in words is "one hundred twenty-one million, two hundred twelve thousand, fifty".