22051401305 has 4 divisors (see below), whose sum is σ = 26461681572. Its totient is φ = 17641121040.

The previous prime is 22051401293. The next prime is 22051401313. The reversal of 22051401305 is 50310415022.

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 17248356889 + 4803044416 = 131333^2 + 69304^2 .

It is not a de Polignac number, because 22051401305 - 2⁴ = 22051401289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2205140126 + ... + 2205140135.

It is an arithmetic number, because the mean of its divisors is an integer number (6615420393).

Almost surely, 2^22051401305 is an apocalyptic number.

It is an amenable number.

22051401305 is a deficient number, since it is larger than the sum of its proper divisors (4410280267).

22051401305 is an equidigital number, since it uses as much as digits as its factorization.

22051401305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4410280266.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 22051401305 its reverse (50310415022), we get a palindrome (72361816327).

The spelling of 22051401305 in words is "twenty-two billion, fifty-one million, four hundred one thousand, three hundred five".