21343466770201 has 27 divisors (see below), whose sum is σ = 22379834628309. Its totient is φ = 20354351014200.

The previous prime is 21343466770187. The next prime is 21343466770337. The reversal of 21343466770201 is 10207766434312.

It is a happy number.

The square root of 21343466770201 is 4619899.

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

It is not a de Polignac number, because 21343466770201 - 2²¹ = 21343464673049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21343466770601) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10168396650 + ... + 10168398748.

Almost surely, 2^{21343466770201} is an apocalyptic number.

21343466770201 is the 4619899-th square number.

21343466770201 is the 2309950-th centered octagonal number.

It is an amenable number.

21343466770201 is a deficient number, since it is larger than the sum of its proper divisors (1036367858108).

21343466770201 is an frugal number, since it uses more digits than its factorization.

21343466770201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4402 (or 2201 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 46.

The spelling of 21343466770201 in words is "twenty-one trillion, three hundred forty-three billion, four hundred sixty-six million, seven hundred seventy thousand, two hundred one".