121021315847702 has 16 divisors (see below), whose sum is σ = 187440763703424. Its totient is φ = 58542163776000.

The previous prime is 121021315847687. The next prime is 121021315847713. The reversal of 121021315847702 is 207748513120121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275402699 + ... + 275841782.

It is an arithmetic number, because the mean of its divisors is an integer number (11715047731464).

Almost surely, 2^{121021315847702} is an apocalyptic number.

121021315847702 is a deficient number, since it is larger than the sum of its proper divisors (66419447855722).

121021315847702 is a wasteful number, since it uses less digits than its factorization.

121021315847702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551248055.

The product of its (nonzero) digits is 188160, while the sum is 44.

Adding to 121021315847702 its reverse (207748513120121), we get a palindrome (328769828967823).

The spelling of 121021315847702 in words is "one hundred twenty-one trillion, twenty-one billion, three hundred fifteen million, eight hundred forty-seven thousand, seven hundred two".