12200231242 has 4 divisors (see below), whose sum is σ = 18300346866. Its totient is φ = 6100115620.

The previous prime is 12200231207. The next prime is 12200231273. The reversal of 12200231242 is 24213200221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10695489561 + 1504741681 = 103419^2 + 38791^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3050057809 + ... + 3050057812.

Almost surely, 2^12200231242 is an apocalyptic number.

12200231242 is a deficient number, since it is larger than the sum of its proper divisors (6100115624).

12200231242 is an equidigital number, since it uses as much as digits as its factorization.

12200231242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100115623.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12200231242 its reverse (24213200221), we get a palindrome (36413431463).

The spelling of 12200231242 in words is "twelve billion, two hundred million, two hundred thirty-one thousand, two hundred forty-two".