2204115555221 has 8 divisors (see below), whose sum is σ = 2305914355584. Its totient is φ = 2104604368480.

The previous prime is 2204115555181. The next prime is 2204115555223. The reversal of 2204115555221 is 1225555114022.

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 2204115555221 - 2²² = 2204111360917 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 (2204115555223) 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, 571901435 + ... + 571905288.

It is an arithmetic number, because the mean of its divisors is an integer number (288239294448).

Almost surely, 2^{2204115555221} is an apocalyptic number.

It is an amenable number.

2204115555221 is a deficient number, since it is larger than the sum of its proper divisors (101798800363).

2204115555221 is a wasteful number, since it uses less digits than its factorization.

2204115555221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143806811.

The product of its (nonzero) digits is 40000, while the sum is 35.

The spelling of 2204115555221 in words is "two trillion, two hundred four billion, one hundred fifteen million, five hundred fifty-five thousand, two hundred twenty-one".