12201000001242 has 64 divisors (see below), whose sum is σ = 27858071888640. Its totient is φ = 3529109597184.

The previous prime is 12201000001241. The next prime is 12201000001303. The reversal of 12201000001242 is 24210000010221.

It is not an unprimeable number, because it can be changed into a prime (12201000001241) 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, 4371013 + ... + 6596040.

It is an arithmetic number, because the mean of its divisors is an integer number (435282373260).

Almost surely, 2^{12201000001242} is an apocalyptic number.

12201000001242 is an abundant number, since it is smaller than the sum of its proper divisors (15657071887398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12201000001242 is a wasteful number, since it uses less digits than its factorization.

12201000001242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10967927.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12201000001242 its reverse (24210000010221), we get a palindrome (36411000011463).

The spelling of 12201000001242 in words is "twelve trillion, two hundred one billion, one thousand, two hundred forty-two".