221020102020104 has 16 divisors (see below), whose sum is σ = 432430634387520. Its totient is φ = 105705266183440.

The previous prime is 221020102020101. The next prime is 221020102020119. The reversal of 221020102020104 is 401020201020122.

It is not an unprimeable number, because it can be changed into a prime (221020102020101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600598103132 + ... + 600598103499.

It is an arithmetic number, because the mean of its divisors is an integer number (27026914649220).

Almost surely, 2^{221020102020104} is an apocalyptic number.

It is an amenable number.

221020102020104 is a deficient number, since it is larger than the sum of its proper divisors (211410532367416).

221020102020104 is a wasteful number, since it uses less digits than its factorization.

221020102020104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201196206660 (or 1201196206656 counting only the distinct ones).

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

Adding to 221020102020104 its reverse (401020201020122), we get a palindrome (622040303040226).

The spelling of 221020102020104 in words is "two hundred twenty-one trillion, twenty billion, one hundred two million, twenty thousand, one hundred four".