12040202220242 has 72 divisors (see below), whose sum is σ = 23287763274624. Its totient is φ = 4645397463168.

The previous prime is 12040202220223. The next prime is 12040202220247. The reversal of 12040202220242 is 24202220204021.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (12040202220247) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8590298 + ... + 9893109.

It is an arithmetic number, because the mean of its divisors is an integer number (323441156592).

Almost surely, 2^{12040202220242} is an apocalyptic number.

12040202220242 is a deficient number, since it is larger than the sum of its proper divisors (11247561054382).

12040202220242 is a wasteful number, since it uses less digits than its factorization.

12040202220242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18483480 (or 18483456 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 12040202220242 its reverse (24202220204021), we get a palindrome (36242422424263).

The spelling of 12040202220242 in words is "twelve trillion, forty billion, two hundred two million, two hundred twenty thousand, two hundred forty-two".