222221220100201 has 4 divisors (see below), whose sum is σ = 253967108685952. Its totient is φ = 190475331514452.

The previous prime is 222221220100097. The next prime is 222221220100259. The reversal of 222221220100201 is 102001022122222.

222221220100201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222221220100201 - 2¹¹ = 222221220098153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222221220100501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15872944292865 + ... + 15872944292878.

It is an arithmetic number, because the mean of its divisors is an integer number (63491777171488).

Almost surely, 2^{222221220100201} is an apocalyptic number.

It is an amenable number.

222221220100201 is a deficient number, since it is larger than the sum of its proper divisors (31745888585751).

222221220100201 is an equidigital number, since it uses as much as digits as its factorization.

222221220100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31745888585750.

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

Adding to 222221220100201 its reverse (102001022122222), we get a palindrome (324222242222423).

The spelling of 222221220100201 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two hundred twenty million, one hundred thousand, two hundred one".