222121200202201 has 4 divisors (see below), whose sum is σ = 223719194448400. Its totient is φ = 220523205956004.

The previous prime is 222121200202189. The next prime is 222121200202259. The reversal of 222121200202201 is 102202002121222.

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 222121200202201 - 2¹⁵ = 222121200169433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222121200202501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 798997122891 + ... + 798997123168.

It is an arithmetic number, because the mean of its divisors is an integer number (55929798612100).

Almost surely, 2^{222121200202201} is an apocalyptic number.

It is an amenable number.

222121200202201 is a deficient number, since it is larger than the sum of its proper divisors (1597994246199).

222121200202201 is a wasteful number, since it uses less digits than its factorization.

222121200202201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597994246198.

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

Adding to 222121200202201 its reverse (102202002121222), we get a palindrome (324323202323423).

The spelling of 222121200202201 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, two hundred million, two hundred two thousand, two hundred one".