20112243200242 has 64 divisors (see below), whose sum is σ = 32593144155264. Its totient is φ = 9273175741440.

The previous prime is 20112243200237. The next prime is 20112243200243. The reversal of 20112243200242 is 24200234221102.

It is not an unprimeable number, because it can be changed into a prime (20112243200243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2439913773 + ... + 2439922015.

It is an arithmetic number, because the mean of its divisors is an integer number (509267877426).

Almost surely, 2^{20112243200242} is an apocalyptic number.

20112243200242 is a deficient number, since it is larger than the sum of its proper divisors (12480900955022).

20112243200242 is a wasteful number, since it uses less digits than its factorization.

20112243200242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12763.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20112243200242 its reverse (24200234221102), we get a palindrome (44312477421344).

The spelling of 20112243200242 in words is "twenty trillion, one hundred twelve billion, two hundred forty-three million, two hundred thousand, two hundred forty-two".