22222140054421 has 8 divisors (see below), whose sum is σ = 22383391787064. Its totient is φ = 22061377705920.

The previous prime is 22222140054403. The next prime is 22222140054463. The reversal of 22222140054421 is 12445004122222.

It can be written as a sum of positive squares in 4 ways, for example, as 10902616251921 + 11319523802500 = 3301911^2 + 3364450^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22222140054421 - 2²³ = 22222131665813 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 (22222140054221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122254890 + ... + 122436523.

It is an arithmetic number, because the mean of its divisors is an integer number (2797923973383).

Almost surely, 2^{22222140054421} is an apocalyptic number.

It is an amenable number.

22222140054421 is a deficient number, since it is larger than the sum of its proper divisors (161251732643).

22222140054421 is a wasteful number, since it uses less digits than its factorization.

22222140054421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244692071.

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 22222140054421 its reverse (12445004122222), we get a palindrome (34667144176643).

The spelling of 22222140054421 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred forty million, fifty-four thousand, four hundred twenty-one".