121520050 has 24 divisors (see below), whose sum is σ = 229217472. Its totient is φ = 47922000.

The previous prime is 121520039. The next prime is 121520053. The reversal of 121520050 is 50025121.

It is not an unprimeable number, because it can be changed into a prime (121520053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13566 + ... + 20665.

It is an arithmetic number, because the mean of its divisors is an integer number (9550728).

Almost surely, 2^121520050 is an apocalyptic number.

121520050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121520050 is a deficient number, since it is larger than the sum of its proper divisors (107697422).

121520050 is a wasteful number, since it uses less digits than its factorization.

121520050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34314 (or 34309 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 121520050 is about 11023.6132914757. The cubic root of 121520050 is about 495.3163301326.

Adding to 121520050 its reverse (50025121), we get a palindrome (171545171).

The spelling of 121520050 in words is "one hundred twenty-one million, five hundred twenty thousand, fifty".