204103210012221 has 16 divisors (see below), whose sum is σ = 305813505303936. Its totient is φ = 120141019939776.

The previous prime is 204103210012159. The next prime is 204103210012279. The reversal of 204103210012221 is 122210012301402.

It is a happy number.

It is not a de Polignac number, because 204103210012221 - 2⁹ = 204103210011709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204103210012321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113769904350 + ... + 113769906143.

It is an arithmetic number, because the mean of its divisors is an integer number (19113344081496).

Almost surely, 2^{204103210012221} is an apocalyptic number.

It is an amenable number.

204103210012221 is a deficient number, since it is larger than the sum of its proper divisors (101710295291715).

204103210012221 is a wasteful number, since it uses less digits than its factorization.

204103210012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227539810532.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 204103210012221 its reverse (122210012301402), we get a palindrome (326313222313623).

The spelling of 204103210012221 in words is "two hundred four trillion, one hundred three billion, two hundred ten million, twelve thousand, two hundred twenty-one".