221131112130322 has 8 divisors (see below), whose sum is σ = 331698140064972. Its totient is φ = 110565065442000.

The previous prime is 221131112130319. The next prime is 221131112130421. The reversal of 221131112130322 is 223031211131122.

It can be written as a sum of positive squares in 2 ways, for example, as 175470265617361 + 45660846512961 = 13246519^2 + 6757281^2 .

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

It is a super-2 number, since 2×221131112130322² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244747929 + ... + 245649772.

Almost surely, 2^{221131112130322} is an apocalyptic number.

221131112130322 is a deficient number, since it is larger than the sum of its proper divisors (110567027934650).

221131112130322 is a wasteful number, since it uses less digits than its factorization.

221131112130322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490623164.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 221131112130322 its reverse (223031211131122), we get a palindrome (444162323261444).

The spelling of 221131112130322 in words is "two hundred twenty-one trillion, one hundred thirty-one billion, one hundred twelve million, one hundred thirty thousand, three hundred twenty-two".