2003545112221 has 8 divisors (see below), whose sum is σ = 2068516346624. Its totient is φ = 1938595174560.

The previous prime is 2003545112209. The next prime is 2003545112281. The reversal of 2003545112221 is 1222115453002.

It is a happy number.

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 2003545112221 - 2¹¹ = 2003545110173 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2003545112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003545112201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5132871 + ... + 5509396.

It is an arithmetic number, because the mean of its divisors is an integer number (258564543328).

Almost surely, 2^{2003545112221} is an apocalyptic number.

It is an amenable number.

2003545112221 is a deficient number, since it is larger than the sum of its proper divisors (64971234403).

2003545112221 is a wasteful number, since it uses less digits than its factorization.

2003545112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10648371.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 2003545112221 in words is "two trillion, three billion, five hundred forty-five million, one hundred twelve thousand, two hundred twenty-one".