22132132113221 has 4 divisors (see below), whose sum is σ = 23834603814252. Its totient is φ = 20429660412192.

The previous prime is 22132132113211. The next prime is 22132132113233. The reversal of 22132132113221 is 12231123123122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8005283668321 + 14126848444900 = 2829361^2 + 3758570^2 .

It is a cyclic number.

It is not a de Polignac number, because 22132132113221 - 2¹⁸ = 22132131851077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22132132113211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851235850496 + ... + 851235850521.

It is an arithmetic number, because the mean of its divisors is an integer number (5958650953563).

Almost surely, 2^{22132132113221} is an apocalyptic number.

It is an amenable number.

22132132113221 is a deficient number, since it is larger than the sum of its proper divisors (1702471701031).

22132132113221 is a wasteful number, since it uses less digits than its factorization.

22132132113221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702471701030.

The product of its digits is 1728, while the sum is 26.

Adding to 22132132113221 its reverse (12231123123122), we get a palindrome (34363255236343).

The spelling of 22132132113221 in words is "twenty-two trillion, one hundred thirty-two billion, one hundred thirty-two million, one hundred thirteen thousand, two hundred twenty-one".