22142342312221 has 16 divisors (see below), whose sum is σ = 22944356467200. Its totient is φ = 21342897975168.

The previous prime is 22142342312191. The next prime is 22142342312243. The reversal of 22142342312221 is 12221324324122.

It is a cyclic number.

It is not a de Polignac number, because 22142342312221 - 2¹⁷ = 22142342181149 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 (22142342312021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469900300 + ... + 469947418.

It is an arithmetic number, because the mean of its divisors is an integer number (1434022279200).

Almost surely, 2^{22142342312221} is an apocalyptic number.

It is an amenable number.

22142342312221 is a deficient number, since it is larger than the sum of its proper divisors (802014154979).

22142342312221 is a wasteful number, since it uses less digits than its factorization.

22142342312221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74028.

The product of its digits is 18432, while the sum is 31.

Adding to 22142342312221 its reverse (12221324324122), we get a palindrome (34363666636343).

The spelling of 22142342312221 in words is "twenty-two trillion, one hundred forty-two billion, three hundred forty-two million, three hundred twelve thousand, two hundred twenty-one".