2212322331221 has 8 divisors (see below), whose sum is σ = 2287743869184. Its totient is φ = 2137154312160.

The previous prime is 2212322331179. The next prime is 2212322331239. The reversal of 2212322331221 is 1221332232122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2212322331221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212322331421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63361976 + ... + 63396881.

It is an arithmetic number, because the mean of its divisors is an integer number (285967983648).

Almost surely, 2^{2212322331221} is an apocalyptic number.

It is an amenable number.

2212322331221 is a deficient number, since it is larger than the sum of its proper divisors (75421537963).

2212322331221 is a wasteful number, since it uses less digits than its factorization.

2212322331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126759451.

The product of its digits is 3456, while the sum is 26.

Adding to 2212322331221 its reverse (1221332232122), we get a palindrome (3433654563343).

Subtracting from 2212322331221 its reverse (1221332232122), we obtain a palindrome (990990099099).

The spelling of 2212322331221 in words is "two trillion, two hundred twelve billion, three hundred twenty-two million, three hundred thirty-one thousand, two hundred twenty-one".