20121050 has 24 divisors (see below), whose sum is σ = 37798176. Its totient is φ = 7968240.

The previous prime is 20121043. The next prime is 20121061. The reversal of 20121050 is 5012102.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3197 + ... + 7103.

It is an arithmetic number, because the mean of its divisors is an integer number (1574924).

Almost surely, 2^20121050 is an apocalyptic number.

20121050 is a deficient number, since it is larger than the sum of its proper divisors (17677126).

20121050 is a wasteful number, since it uses less digits than its factorization.

20121050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022 (or 4017 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 20121050 is about 4485.6493398392. The cubic root of 20121050 is about 271.9882942627.

Adding to 20121050 its reverse (5012102), we get a palindrome (25133152).

The spelling of 20121050 in words is "twenty million, one hundred twenty-one thousand, fifty".