201021022100204 has 12 divisors (see below), whose sum is σ = 351794421437928. Its totient is φ = 100508330260800.

The previous prime is 201021022100201. The next prime is 201021022100221. The reversal of 201021022100204 is 402001220120102.

It is not an unprimeable number, because it can be changed into a prime (201021022100201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 544989917 + ... + 545358644.

It is an arithmetic number, because the mean of its divisors is an integer number (29316201786494).

Almost surely, 2^{201021022100204} is an apocalyptic number.

It is an amenable number.

201021022100204 is a deficient number, since it is larger than the sum of its proper divisors (150773399337724).

201021022100204 is a wasteful number, since it uses less digits than its factorization.

201021022100204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090394656 (or 1090394654 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201021022100204 its reverse (402001220120102), we get a palindrome (603022242220306).

The spelling of 201021022100204 in words is "two hundred one trillion, twenty-one billion, twenty-two million, one hundred thousand, two hundred four".