22030221203455 has 4 divisors (see below), whose sum is σ = 26436265444152. Its totient is φ = 17624176962760.

The previous prime is 22030221203407. The next prime is 22030221203461. The reversal of 22030221203455 is 55430212203022.

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

It is not a de Polignac number, because 22030221203455 - 2²¹ = 22030219106303 is a prime.

It is a Duffinian number.

It is a congruent 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, 2203022120341 + ... + 2203022120350.

It is an arithmetic number, because the mean of its divisors is an integer number (6609066361038).

Almost surely, 2^{22030221203455} is an apocalyptic number.

22030221203455 is a deficient number, since it is larger than the sum of its proper divisors (4406044240697).

22030221203455 is an equidigital number, since it uses as much as digits as its factorization.

22030221203455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4406044240696.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 22030221203455 its reverse (55430212203022), we get a palindrome (77460433406477).

The spelling of 22030221203455 in words is "twenty-two trillion, thirty billion, two hundred twenty-one million, two hundred three thousand, four hundred fifty-five".