20112020121242 has 8 divisors (see below), whose sum is σ = 34477748779296. Its totient is φ = 8619437194812.

The previous prime is 20112020121223. The next prime is 20112020121269. The reversal of 20112020121242 is 24212102021102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718286432888 + ... + 718286432915.

It is an arithmetic number, because the mean of its divisors is an integer number (4309718597412).

Almost surely, 2^{20112020121242} is an apocalyptic number.

20112020121242 is a deficient number, since it is larger than the sum of its proper divisors (14365728658054).

20112020121242 is a wasteful number, since it uses less digits than its factorization.

20112020121242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436572865812.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20112020121242 its reverse (24212102021102), we get a palindrome (44324122142344).

The spelling of 20112020121242 in words is "twenty trillion, one hundred twelve billion, twenty million, one hundred twenty-one thousand, two hundred forty-two".