35521220000000 has 576 divisors, whose sum is σ = 101720677094400. Its totient is φ = 12127104000000.

The previous prime is 35521219999943. The next prime is 35521220000009. The reversal of 35521220000000 is 2212553.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (35521220000009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48859999637 + ... + 48860000363.

Almost surely, 2^{35521220000000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 35521220000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50860338547200).

35521220000000 is an abundant number, since it is smaller than the sum of its proper divisors (66199457094400).

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

35521220000000 is an frugal number, since it uses more digits than its factorization.

35521220000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 35521220000000 its reverse (2212553), we get a palindrome (35521222212553).

The spelling of 35521220000000 in words is "thirty-five trillion, five hundred twenty-one billion, two hundred twenty million", and thus it is an aban number.