221012122012322 has 8 divisors (see below), whose sum is σ = 331518247843356. Its totient is φ = 110506039397872.

The previous prime is 221012122012307. The next prime is 221012122012369. The reversal of 221012122012322 is 223210221210122.

It can be written as a sum of positive squares in 2 ways, for example, as 220546587357721 + 465534654601 = 14850811^2 + 682301^2 .

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

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, 9969488 + ... + 23268324.

Almost surely, 2^{221012122012322} is an apocalyptic number.

221012122012322 is a deficient number, since it is larger than the sum of its proper divisors (110506125831034).

221012122012322 is a wasteful number, since it uses less digits than its factorization.

221012122012322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21608292.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 221012122012322 its reverse (223210221210122), we get a palindrome (444222343222444).

The spelling of 221012122012322 in words is "two hundred twenty-one trillion, twelve billion, one hundred twenty-two million, twelve thousand, three hundred twenty-two".