221002202022201 has 8 divisors (see below), whose sum is σ = 327410669662560. Its totient is φ = 147334801348116.

The previous prime is 221002202022139. The next prime is 221002202022307. The reversal of 221002202022201 is 102220202200122.

221002202022201 is a `hidden beast` number, since 2 + 21 + 0 + 0 + 220 + 202 + 220 + 1 = 666.

It is not a de Polignac number, because 221002202022201 - 2¹⁴ = 221002202005817 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221002202032201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4092633370755 + ... + 4092633370808.

It is an arithmetic number, because the mean of its divisors is an integer number (40926333707820).

Almost surely, 2^{221002202022201} is an apocalyptic number.

It is an amenable number.

221002202022201 is a deficient number, since it is larger than the sum of its proper divisors (106408467640359).

221002202022201 is an equidigital number, since it uses as much as digits as its factorization.

221002202022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8185266741572 (or 8185266741566 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 221002202022201 its reverse (102220202200122), we get a palindrome (323222404222323).

The spelling of 221002202022201 in words is "two hundred twenty-one trillion, two billion, two hundred two million, twenty-two thousand, two hundred one".