12021630463042 has 4 divisors (see below), whose sum is σ = 18032445694566. Its totient is φ = 6010815231520.

The previous prime is 12021630463001. The next prime is 12021630463187. The reversal of 12021630463042 is 24036403612021.

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., 11402514851121 + 619115611921 = 3376761^2 + 786839^2 .

It is a super-2 number, since 2×12021630463042² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12021630462989 and 12021630463007.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3005407615759 + ... + 3005407615762.

Almost surely, 2^{12021630463042} is an apocalyptic number.

12021630463042 is a deficient number, since it is larger than the sum of its proper divisors (6010815231524).

12021630463042 is an equidigital number, since it uses as much as digits as its factorization.

12021630463042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6010815231523.

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 12021630463042 in words is "twelve trillion, twenty-one billion, six hundred thirty million, four hundred sixty-three thousand, forty-two".