12420010512452 has 12 divisors (see below), whose sum is σ = 22322451326700. Its totient is φ = 6042167276256.

The previous prime is 12420010512397. The next prime is 12420010512463. The reversal of 12420010512452 is 25421501002421.

It can be written as a sum of positive squares in 2 ways, for example, as 5603190815236 + 6816819697216 = 2367106^2 + 2610904^2 .

It is a super-2 number, since 2×12420010512452² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41959494827 + ... + 41959495122.

It is an arithmetic number, because the mean of its divisors is an integer number (1860204277225).

Almost surely, 2^{12420010512452} is an apocalyptic number.

It is an amenable number.

12420010512452 is a deficient number, since it is larger than the sum of its proper divisors (9902440814248).

12420010512452 is a wasteful number, since it uses less digits than its factorization.

12420010512452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83918989990 (or 83918989988 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 12420010512452 its reverse (25421501002421), we get a palindrome (37841511514873).

The spelling of 12420010512452 in words is "twelve trillion, four hundred twenty billion, ten million, five hundred twelve thousand, four hundred fifty-two".