22215354405201 has 12 divisors (see below), whose sum is σ = 32099126883460. Its totient is φ = 14805490901760.

The previous prime is 22215354405121. The next prime is 22215354405217. The reversal of 22215354405201 is 10250445351222.

22215354405201 is a `hidden beast` number, since 2 + 2 + 2 + 1 + 5 + 3 + 5 + 440 + 5 + 201 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4132031907600 + 18083322497601 = 2032740^2 + 4252449^2 .

It is not a de Polignac number, because 22215354405201 - 2⁷ = 22215354405073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22215354405221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 395417716 + ... + 395473893.

Almost surely, 2^{22215354405201} is an apocalyptic number.

It is an amenable number.

22215354405201 is a deficient number, since it is larger than the sum of its proper divisors (9883772478259).

22215354405201 is a wasteful number, since it uses less digits than its factorization.

22215354405201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790894736 (or 790894733 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 22215354405201 its reverse (10250445351222), we get a palindrome (32465799756423).

The spelling of 22215354405201 in words is "twenty-two trillion, two hundred fifteen billion, three hundred fifty-four million, four hundred five thousand, two hundred one".