12021231303122 has 4 divisors (see below), whose sum is σ = 18031846954686. Its totient is φ = 6010615651560.

The previous prime is 12021231303061. The next prime is 12021231303127. The reversal of 12021231303122 is 22130313212021.

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., 7385344324801 + 4635886978321 = 2717599^2 + 2153111^2 .

It is not an unprimeable number, because it can be changed into a prime (12021231303127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3005307825779 + ... + 3005307825782.

Almost surely, 2^{12021231303122} is an apocalyptic number.

12021231303122 is a deficient number, since it is larger than the sum of its proper divisors (6010615651564).

12021231303122 is an equidigital number, since it uses as much as digits as its factorization.

12021231303122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6010615651563.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12021231303122 its reverse (22130313212021), we get a palindrome (34151544515143).

The spelling of 12021231303122 in words is "twelve trillion, twenty-one billion, two hundred thirty-one million, three hundred three thousand, one hundred twenty-two".