1021122100204 has 24 divisors (see below), whose sum is σ = 1843053363648. Its totient is φ = 494750534400.

The previous prime is 1021122100177. The next prime is 1021122100247. The reversal of 1021122100204 is 4020012211201.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 26869629 + ... + 26907604.

It is an arithmetic number, because the mean of its divisors is an integer number (76793890152).

Almost surely, 2^{1021122100204} is an apocalyptic number.

It is an amenable number.

1021122100204 is a deficient number, since it is larger than the sum of its proper divisors (821931263444).

1021122100204 is a wasteful number, since it uses less digits than its factorization.

1021122100204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53777385 (or 53777383 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1021122100204 its reverse (4020012211201), we get a palindrome (5041134311405).

The spelling of 1021122100204 in words is "one trillion, twenty-one billion, one hundred twenty-two million, one hundred thousand, two hundred four".