204221242122402 has 16 divisors (see below), whose sum is σ = 411147401360832. Its totient is φ = 67622927854800.

The previous prime is 204221242122377. The next prime is 204221242122409.

It is a happy number.

204221242122402 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 204221242122402.

It is not an unprimeable number, because it can be changed into a prime (204221242122409) 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, 112704878853 + ... + 112704880664.

It is an arithmetic number, because the mean of its divisors is an integer number (25696712585052).

Almost surely, 2^{204221242122402} is an apocalyptic number.

204221242122402 is an abundant number, since it is smaller than the sum of its proper divisors (206926159238430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204221242122402 is a wasteful number, since it uses less digits than its factorization.

204221242122402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225409759673.

The product of its (nonzero) digits is 16384, while the sum is 30.

The spelling of 204221242122402 in words is "two hundred four trillion, two hundred twenty-one billion, two hundred forty-two million, one hundred twenty-two thousand, four hundred two".