221200020220201 has 128 divisors (see below), whose sum is σ = 269974332702720. Its totient is φ = 178878585600000.

The previous prime is 221200020220199. The next prime is 221200020220259. The reversal of 221200020220201 is 102022020002122.

It is not a de Polignac number, because 221200020220201 - 2¹ = 221200020220199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221200020226201) 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 127 ways as a sum of consecutive naturals, for example, 29025061171 + ... + 29025068791.

It is an arithmetic number, because the mean of its divisors is an integer number (2109174474240).

Almost surely, 2^{221200020220201} is an apocalyptic number.

It is an amenable number.

221200020220201 is a deficient number, since it is larger than the sum of its proper divisors (48774312482519).

221200020220201 is a wasteful number, since it uses less digits than its factorization.

221200020220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8279.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 221200020220201 its reverse (102022020002122), we get a palindrome (323222040222323).

The spelling of 221200020220201 in words is "two hundred twenty-one trillion, two hundred billion, twenty million, two hundred twenty thousand, two hundred one".