21335532545200 has 60 divisors (see below), whose sum is σ = 53026155483840. Its totient is φ = 8239929806080.

The previous prime is 21335532545191. The next prime is 21335532545227. The reversal of 21335532545200 is 254523553312.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 919623424 + ... + 919646623.

It is an arithmetic number, because the mean of its divisors is an integer number (883769258064).

Almost surely, 2^{21335532545200} is an apocalyptic number.

21335532545200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21335532545200 is an abundant number, since it is smaller than the sum of its proper divisors (31690622938640).

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

21335532545200 is a wasteful number, since it uses less digits than its factorization.

21335532545200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839270094 (or 1839270083 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 40.

The spelling of 21335532545200 in words is "twenty-one trillion, three hundred thirty-five billion, five hundred thirty-two million, five hundred forty-five thousand, two hundred".