222100221220201 has 16 divisors (see below), whose sum is σ = 236751198611200. Its totient is φ = 207745440933888.

The previous prime is 222100221220193. The next prime is 222100221220211. The reversal of 222100221220201 is 102022122001222.

It is a cyclic number.

It is not a de Polignac number, because 222100221220201 - 2³ = 222100221220193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222100221220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183264031 + ... + 184471963.

It is an arithmetic number, because the mean of its divisors is an integer number (14796949913200).

Almost surely, 2^{222100221220201} is an apocalyptic number.

It is an amenable number.

222100221220201 is a deficient number, since it is larger than the sum of its proper divisors (14650977390999).

222100221220201 is a wasteful number, since it uses less digits than its factorization.

222100221220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330528.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222100221220201 its reverse (102022122001222), we get a palindrome (324122343221423).

The spelling of 222100221220201 in words is "two hundred twenty-two trillion, one hundred billion, two hundred twenty-one million, two hundred twenty thousand, two hundred one".