421069912201 has 27 divisors (see below), whose sum is σ = 446583376981. Its totient is φ = 396980834624.

The previous prime is 421069912139. The next prime is 421069912223. The reversal of 421069912201 is 102219960124.

The square root of 421069912201 is 648899.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 249445308025 + 171624604176 = 499445^2 + 414276^2 .

It is not a de Polignac number, because 421069912201 - 2¹³ = 421069904009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421069972201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1328296095 + ... + 1328296411.

Almost surely, 2^421069912201 is an apocalyptic number.

421069912201 is the 648899-th square number.

421069912201 is the 324450-th centered octagonal number.

It is an amenable number.

421069912201 is a deficient number, since it is larger than the sum of its proper divisors (25513464780).

421069912201 is an frugal number, since it uses more digits than its factorization.

421069912201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 421069912201 in words is "four hundred twenty-one billion, sixty-nine million, nine hundred twelve thousand, two hundred one".