222221002102201 has 4 divisors (see below), whose sum is σ = 222238713201232. Its totient is φ = 222203291003172.

The previous prime is 222221002102171. The next prime is 222221002102223. The reversal of 222221002102201 is 102201200122222.

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 222221002102201 - 2²¹ = 222221000005049 is a prime.

It is a super-2 number, since 2×222221002102201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222221000102201) 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, 8855530695 + ... + 8855555788.

It is an arithmetic number, because the mean of its divisors is an integer number (55559678300308).

Almost surely, 2^{222221002102201} is an apocalyptic number.

It is an amenable number.

222221002102201 is a deficient number, since it is larger than the sum of its proper divisors (17711099031).

222221002102201 is a wasteful number, since it uses less digits than its factorization.

222221002102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17711099030.

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

Adding to 222221002102201 its reverse (102201200122222), we get a palindrome (324422202224423).

The spelling of 222221002102201 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two million, one hundred two thousand, two hundred one".