402421333201 has 2 divisors, whose sum is σ = 402421333202. Its totient is φ = 402421333200.

The previous prime is 402421333163. The next prime is 402421333247. The reversal of 402421333201 is 102333124204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 402082810000 + 338523201 = 634100^2 + 18399^2 .

It is a cyclic number.

It is not a de Polignac number, because 402421333201 - 2¹⁵ = 402421300433 is a prime.

It is not a weakly prime, because it can be changed into another prime (402421333801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201210666600 + 201210666601.

It is an arithmetic number, because the mean of its divisors is an integer number (201210666601).

Almost surely, 2^402421333201 is an apocalyptic number.

It is an amenable number.

402421333201 is a deficient number, since it is larger than the sum of its proper divisors (1).

402421333201 is an equidigital number, since it uses as much as digits as its factorization.

402421333201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 402421333201 its reverse (102333124204), we get a palindrome (504754457405).

The spelling of 402421333201 in words is "four hundred two billion, four hundred twenty-one million, three hundred thirty-three thousand, two hundred one".