222002221011221 has 16 divisors (see below), whose sum is σ = 253759278299520. Its totient is φ = 190255779141120.

The previous prime is 222002221011161. The next prime is 222002221011253. The reversal of 222002221011221 is 122110122200222.

222002221011221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222002221011221 - 2³⁴ = 221985041142037 is a prime.

It is a super-2 number, since 2×222002221011221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222002221011193 and 222002221011202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222002221011421) 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, 2073009245 + ... + 2073116333.

It is an arithmetic number, because the mean of its divisors is an integer number (15859954893720).

Almost surely, 2^{222002221011221} is an apocalyptic number.

It is an amenable number.

222002221011221 is a deficient number, since it is larger than the sum of its proper divisors (31757057288299).

222002221011221 is a wasteful number, since it uses less digits than its factorization.

222002221011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153884.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222002221011221 its reverse (122110122200222), we get a palindrome (344112343211443).

The spelling of 222002221011221 in words is "two hundred twenty-two trillion, two billion, two hundred twenty-one million, eleven thousand, two hundred twenty-one".