12402422203021 has 4 divisors (see below), whose sum is σ = 12403326908700. Its totient is φ = 12401517497344.

The previous prime is 12402422202979. The next prime is 12402422203069. The reversal of 12402422203021 is 12030222420421.

12402422203021 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 can be written as a sum of positive squares in 2 ways, for example, as 9511759164996 + 2890663038025 = 3084114^2 + 1700195^2 .

It is a cyclic number.

It is not a de Polignac number, because 12402422203021 - 2¹³ = 12402422194829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402426203021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452332276 + ... + 452359693.

It is an arithmetic number, because the mean of its divisors is an integer number (3100831727175).

Almost surely, 2^{12402422203021} is an apocalyptic number.

It is an amenable number.

12402422203021 is a deficient number, since it is larger than the sum of its proper divisors (904705679).

12402422203021 is an equidigital number, since it uses as much as digits as its factorization.

12402422203021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904705678.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 12402422203021 its reverse (12030222420421), we get a palindrome (24432644623442).

The spelling of 12402422203021 in words is "twelve trillion, four hundred two billion, four hundred twenty-two million, two hundred three thousand, twenty-one".