222132282231221 has 8 divisors (see below), whose sum is σ = 222273072567000. Its totient is φ = 221991498120448.

The previous prime is 222132282231203. The next prime is 222132282231263. The reversal of 222132282231221 is 122132282231222.

It can be written as a sum of positive squares in 4 ways, for example, as 18053057734321 + 204079224496900 = 4248889^2 + 14285630^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222132282231221 - 2³⁰ = 222131208489397 is a prime.

It is a super-2 number, since 2×222132282231221² (a number of 29 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 (222132282431221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70902305 + ... + 73968921.

It is an arithmetic number, because the mean of its divisors is an integer number (27784134070875).

Almost surely, 2^{222132282231221} is an apocalyptic number.

It is an amenable number.

222132282231221 is a deficient number, since it is larger than the sum of its proper divisors (140790335779).

222132282231221 is a wasteful number, since it uses less digits than its factorization.

222132282231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3112503.

The product of its digits is 36864, while the sum is 35.

Subtracting from 222132282231221 its reverse (122132282231222), we obtain a palindrome (99999999999999).

The spelling of 222132282231221 in words is "two hundred twenty-two trillion, one hundred thirty-two billion, two hundred eighty-two million, two hundred thirty-one thousand, two hundred twenty-one".