121151503719882 has 128 divisors (see below), whose sum is σ = 294272716953600. Its totient is φ = 36780390835200.

The previous prime is 121151503719871. The next prime is 121151503719887. The reversal of 121151503719882 is 288917305151121.

121151503719882 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 51 + 503 + 7 + 1 + 9 + 8 + 82 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (121151503719887) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 631358632 + ... + 631550492.

It is an arithmetic number, because the mean of its divisors is an integer number (2299005601200).

Almost surely, 2^{121151503719882} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121151503719882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147136358476800).

121151503719882 is an abundant number, since it is smaller than the sum of its proper divisors (173121213233718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121151503719882 is a wasteful number, since it uses less digits than its factorization.

121151503719882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214109 (or 214103 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 54.

The spelling of 121151503719882 in words is "one hundred twenty-one trillion, one hundred fifty-one billion, five hundred three million, seven hundred nineteen thousand, eight hundred eighty-two".