121055115752 has 8 divisors (see below), whose sum is σ = 226978342050. Its totient is φ = 60527557872.

The previous prime is 121055115721. The next prime is 121055115781. The reversal of 121055115752 is 257511550121.

It can be written as a sum of positive squares in only one way, i.e., 69519759556 + 51535356196 = 263666^2 + 227014^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7565944727 + ... + 7565944742.

Almost surely, 2^121055115752 is an apocalyptic number.

It is an amenable number.

121055115752 is a deficient number, since it is larger than the sum of its proper divisors (105923226298).

121055115752 is a wasteful number, since it uses less digits than its factorization.

121055115752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15131889475 (or 15131889471 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 35.

Adding to 121055115752 its reverse (257511550121), we get a palindrome (378566665873).

The spelling of 121055115752 in words is "one hundred twenty-one billion, fifty-five million, one hundred fifteen thousand, seven hundred fifty-two".