12052421022142 has 4 divisors (see below), whose sum is σ = 18078631533216. Its totient is φ = 6026210511070.

The previous prime is 12052421022133. The next prime is 12052421022197. The reversal of 12052421022142 is 24122012425021.

12052421022142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12052421022142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3013105255534 + ... + 3013105255537.

It is an arithmetic number, because the mean of its divisors is an integer number (4519657883304).

Almost surely, 2^{12052421022142} is an apocalyptic number.

12052421022142 is a deficient number, since it is larger than the sum of its proper divisors (6026210511074).

12052421022142 is an equidigital number, since it uses as much as digits as its factorization.

12052421022142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6026210511073.

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 12052421022142 its reverse (24122012425021), we get a palindrome (36174433447163).

The spelling of 12052421022142 in words is "twelve trillion, fifty-two billion, four hundred twenty-one million, twenty-two thousand, one hundred forty-two".