33500121400 has 48 divisors (see below), whose sum is σ = 80573581800. Its totient is φ = 12937975680.

The previous prime is 33500121397. The next prime is 33500121407. The reversal of 33500121400 is 412100533.

It is a super-2 number, since 2×33500121400² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33500121407) 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 11 ways as a sum of consecutive naturals, for example, 2882142 + ... + 2893741.

Almost surely, 2^33500121400 is an apocalyptic number.

It is an amenable number.

33500121400 is an abundant number, since it is smaller than the sum of its proper divisors (47073460400).

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

33500121400 is a wasteful number, since it uses less digits than its factorization.

33500121400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5775928 (or 5775919 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 33500121400 its reverse (412100533), we get a palindrome (33912221933).

The spelling of 33500121400 in words is "thirty-three billion, five hundred million, one hundred twenty-one thousand, four hundred".