121536355050 has 288 divisors, whose sum is σ = 372449840256. Its totient is φ = 28125504000.

The previous prime is 121536355049. The next prime is 121536355051. The reversal of 121536355050 is 50553635121.

121536355050 is a `hidden beast` number, since 1 + 2 + 1 + 53 + 6 + 3 + 550 + 50 = 666.

It is an interprime number because it is at equal distance from previous prime (121536355049) and next prime (121536355051).

It is a junction number, because it is equal to n+sod(n) for n = 121536354996 and 121536355014.

It is not an unprimeable number, because it can be changed into a prime (121536355051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 88005360 + ... + 88006740.

It is an arithmetic number, because the mean of its divisors is an integer number (1293228612).

Almost surely, 2^121536355050 is an apocalyptic number.

121536355050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121536355050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186224920128).

121536355050 is an abundant number, since it is smaller than the sum of its proper divisors (250913485206).

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

121536355050 is a wasteful number, since it uses less digits than its factorization.

121536355050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206 (or 2198 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The spelling of 121536355050 in words is "one hundred twenty-one billion, five hundred thirty-six million, three hundred fifty-five thousand, fifty".