3391221505500 has 384 divisors, whose sum is σ = 11147974656000. Its totient is φ = 889938316800.

The previous prime is 3391221505499. The next prime is 3391221505523. The reversal of 3391221505500 is 55051221933.

3391221505500 is a `hidden beast` number, since 3 + 3 + 91 + 2 + 2 + 15 + 0 + 550 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 333809421 + ... + 333819579.

It is an arithmetic number, because the mean of its divisors is an integer number (29031184000).

Almost surely, 2^{3391221505500} is an apocalyptic number.

3391221505500 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 3391221505500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5573987328000).

3391221505500 is an abundant number, since it is smaller than the sum of its proper divisors (7756753150500).

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

3391221505500 is a wasteful number, since it uses less digits than its factorization.

3391221505500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10579 (or 10561 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The spelling of 3391221505500 in words is "three trillion, three hundred ninety-one billion, two hundred twenty-one million, five hundred five thousand, five hundred".