2204097621 has 8 divisors (see below), whose sum is σ = 3205960224. Its totient is φ = 1335816720.

The previous prime is 2204097523. The next prime is 2204097631. The reversal of 2204097621 is 1267904022.

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

It is not a de Polignac number, because 2204097621 - 2¹¹ = 2204095573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 66790837 = 2204097621 / (2 + 2 + 0 + 4 + 0 + 9 + 7 + 6 + 2 + 1).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204097631) 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, 33395386 + ... + 33395451.

It is an arithmetic number, because the mean of its divisors is an integer number (400745028).

Almost surely, 2^2204097621 is an apocalyptic number.

It is an amenable number.

2204097621 is a deficient number, since it is larger than the sum of its proper divisors (1001862603).

2204097621 is a wasteful number, since it uses less digits than its factorization.

2204097621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66790851.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 2204097621 is about 46947.8180643148. The cubic root of 2204097621 is about 1301.3984204151.

The spelling of 2204097621 in words is "two billion, two hundred four million, ninety-seven thousand, six hundred twenty-one".