121554033316 has 27 divisors (see below), whose sum is σ = 217400417409. Its totient is φ = 59467850928.

The previous prime is 121554033283. The next prime is 121554033317. The reversal of 121554033316 is 613330455121.

The square root of 121554033316 is 348646.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 32200866916 + 89353166400 = 179446^2 + 298920^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121554033317) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 32770870 + ... + 32774578.

Almost surely, 2^121554033316 is an apocalyptic number.

121554033316 is the 348646-th square number.

It is an amenable number.

121554033316 is a deficient number, since it is larger than the sum of its proper divisors (95846384093).

121554033316 is an frugal number, since it uses more digits than its factorization.

121554033316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7516 (or 3758 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

Adding to 121554033316 its reverse (613330455121), we get a palindrome (734884488437).

The spelling of 121554033316 in words is "one hundred twenty-one billion, five hundred fifty-four million, thirty-three thousand, three hundred sixteen".