2153220000 has 240 divisors, whose sum is σ = 7482004992. Its totient is φ = 540160000.

The previous prime is 2153219993. The next prime is 2153220023. The reversal of 2153220000 is 223512.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1018945 + ... + 1021055.

Almost surely, 2^2153220000 is an apocalyptic number.

2153220000 is a gapful number since it is divisible by the number (20) 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 2153220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3741002496).

2153220000 is an abundant number, since it is smaller than the sum of its proper divisors (5328784992).

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

2153220000 is a wasteful number, since it uses less digits than its factorization.

2153220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161 (or 2138 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2153220000 is about 46402.8016395562. The cubic root of 2153220000 is about 1291.3068902019.

Adding to 2153220000 its reverse (223512), we get a palindrome (2153443512).

The spelling of 2153220000 in words is "two billion, one hundred fifty-three million, two hundred twenty thousand".