2180221296 has 80 divisors (see below), whose sum is σ = 6150915840. Its totient is φ = 659957760.

The previous prime is 2180221283. The next prime is 2180221297. The reversal of 2180221296 is 6921220812.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180221297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 686400 + ... + 689568.

It is an arithmetic number, because the mean of its divisors is an integer number (76886448).

Almost surely, 2^2180221296 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 2180221296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3075457920).

2180221296 is an abundant number, since it is smaller than the sum of its proper divisors (3970694544).

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

2180221296 is a wasteful number, since it uses less digits than its factorization.

2180221296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4494 (or 4488 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 2180221296 is about 46692.8398793648. The cubic root of 2180221296 is about 1296.6821302388.

The spelling of 2180221296 in words is "two billion, one hundred eighty million, two hundred twenty-one thousand, two hundred ninety-six".