21602425773201 has 64 divisors (see below), whose sum is σ = 36378857410560. Its totient is φ = 11099261571840.

The previous prime is 21602425773191. The next prime is 21602425773221. The reversal of 21602425773201 is 10237752420612.

It is not a de Polignac number, because 21602425773201 - 2¹³ = 21602425765009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21602425773221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3359365 + ... + 7381746.

It is an arithmetic number, because the mean of its divisors is an integer number (568419647040).

Almost surely, 2^{21602425773201} is an apocalyptic number.

21602425773201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21602425773201 is a deficient number, since it is larger than the sum of its proper divisors (14776431637359).

21602425773201 is a wasteful number, since it uses less digits than its factorization.

21602425773201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10741326.

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 21602425773201 in words is "twenty-one trillion, six hundred two billion, four hundred twenty-five million, seven hundred seventy-three thousand, two hundred one".