222102222211021 has 4 divisors (see below), whose sum is σ = 225417180751552. Its totient is φ = 218787263670492.

The previous prime is 222102222211007. The next prime is 222102222211027. The reversal of 222102222211021 is 120112222201222.

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 222102222211021 - 2⁹ = 222102222210509 is a prime.

It is a super-2 number, since 2×222102222211021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222102222210983 and 222102222211001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222102222211027) 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 3 ways as a sum of consecutive naturals, for example, 1657479270165 + ... + 1657479270298.

It is an arithmetic number, because the mean of its divisors is an integer number (56354295187888).

Almost surely, 2^{222102222211021} is an apocalyptic number.

It is an amenable number.

222102222211021 is a deficient number, since it is larger than the sum of its proper divisors (3314958540531).

222102222211021 is an equidigital number, since it uses as much as digits as its factorization.

222102222211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3314958540530.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222102222211021 its reverse (120112222201222), we get a palindrome (342214444412243).

The spelling of 222102222211021 in words is "two hundred twenty-two trillion, one hundred two billion, two hundred twenty-two million, two hundred eleven thousand, twenty-one".