20021012204 has 12 divisors (see below), whose sum is σ = 35039302200. Its totient is φ = 10009783008.

The previous prime is 20021012189. The next prime is 20021012227. The reversal of 20021012204 is 40221012002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115889 + ... + 231240.

It is an arithmetic number, because the mean of its divisors is an integer number (2919941850).

Almost surely, 2^20021012204 is an apocalyptic number.

It is an amenable number.

20021012204 is a deficient number, since it is larger than the sum of its proper divisors (15018289996).

20021012204 is a wasteful number, since it uses less digits than its factorization.

20021012204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361552 (or 361550 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20021012204 its reverse (40221012002), we get a palindrome (60242024206).

The spelling of 20021012204 in words is "twenty billion, twenty-one million, twelve thousand, two hundred four".