102220121204 has 12 divisors (see below), whose sum is σ = 179982668544. Its totient is φ = 50796501624.

The previous prime is 102220121197. The next prime is 102220121221. The reversal of 102220121204 is 402121022201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78389012 + ... + 78390315.

It is an arithmetic number, because the mean of its divisors is an integer number (14998555712).

Almost surely, 2^102220121204 is an apocalyptic number.

It is an amenable number.

102220121204 is a deficient number, since it is larger than the sum of its proper divisors (77762547340).

102220121204 is a wasteful number, since it uses less digits than its factorization.

102220121204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156779494 (or 156779492 counting only the distinct ones).

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

Adding to 102220121204 its reverse (402121022201), we get a palindrome (504341143405).

The spelling of 102220121204 in words is "one hundred two billion, two hundred twenty million, one hundred twenty-one thousand, two hundred four".