22122210210221 has 16 divisors (see below), whose sum is σ = 24148933704000. Its totient is φ = 20098090377600.

The previous prime is 22122210210209. The next prime is 22122210210253. The reversal of 22122210210221 is 12201201222122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22122210210221 is a prime.

It is a super-2 number, since 2×22122210210221² (a number of 27 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 = 22122210210193 and 22122210210202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122210210271) 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, 589450985 + ... + 589488513.

It is an arithmetic number, because the mean of its divisors is an integer number (1509308356500).

Almost surely, 2^{22122210210221} is an apocalyptic number.

It is an amenable number.

22122210210221 is a deficient number, since it is larger than the sum of its proper divisors (2026723493779).

22122210210221 is a wasteful number, since it uses less digits than its factorization.

22122210210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70780.

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

Adding to 22122210210221 its reverse (12201201222122), we get a palindrome (34323411432343).

The spelling of 22122210210221 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred ten million, two hundred ten thousand, two hundred twenty-one".