222302111221 has 16 divisors (see below), whose sum is σ = 230186613888. Its totient is φ = 214567662400.

The previous prime is 222302111219. The next prime is 222302111231. The reversal of 222302111221 is 122111203222.

It is a cyclic number.

It is not a de Polignac number, because 222302111221 - 2¹ = 222302111219 is a prime.

It is a super-2 number, since 2×222302111221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222302111231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1670670 + ... + 1798816.

It is an arithmetic number, because the mean of its divisors is an integer number (14386663368).

Almost surely, 2^222302111221 is an apocalyptic number.

It is an amenable number.

222302111221 is a deficient number, since it is larger than the sum of its proper divisors (7884502667).

222302111221 is a wasteful number, since it uses less digits than its factorization.

222302111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128732.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 222302111221 its reverse (122111203222), we get a palindrome (344413314443).

The spelling of 222302111221 in words is "two hundred twenty-two billion, three hundred two million, one hundred eleven thousand, two hundred twenty-one".