20202121033124 has 24 divisors (see below), whose sum is σ = 37439806699008. Its totient is φ = 9505238636160.

The previous prime is 20202121033069. The next prime is 20202121033153. The reversal of 20202121033124 is 42133012120202.

It is a super-2 number, since 2×20202121033124² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20202121033124.

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, 25257224 + ... + 26044799.

It is an arithmetic number, because the mean of its divisors is an integer number (1559991945792).

Almost surely, 2^{20202121033124} is an apocalyptic number.

It is an amenable number.

20202121033124 is a deficient number, since it is larger than the sum of its proper divisors (17237685665884).

20202121033124 is a wasteful number, since it uses less digits than its factorization.

20202121033124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51307835 (or 51307833 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20202121033124 its reverse (42133012120202), we get a palindrome (62335133153326).

The spelling of 20202121033124 in words is "twenty trillion, two hundred two billion, one hundred twenty-one million, thirty-three thousand, one hundred twenty-four".