36121042500 has 120 divisors (see below), whose sum is σ = 110862887520. Its totient is φ = 9125280000.

The previous prime is 36121042483. The next prime is 36121042513. The reversal of 36121042500 is 524012163.

36121042500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×36121042500² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15760 + ... + 269240.

It is an arithmetic number, because the mean of its divisors is an integer number (923857396).

Almost surely, 2^36121042500 is an apocalyptic number.

36121042500 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36121042500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55431443760).

36121042500 is an abundant number, since it is smaller than the sum of its proper divisors (74741845020).

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

36121042500 is a wasteful number, since it uses less digits than its factorization.

36121042500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253527 (or 253510 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 36121042500 its reverse (524012163), we get a palindrome (36645054663).

The spelling of 36121042500 in words is "thirty-six billion, one hundred twenty-one million, forty-two thousand, five hundred".