2110215540 has 48 divisors (see below), whose sum is σ = 6046020288. Its totient is φ = 549636864.

The previous prime is 2110215493. The next prime is 2110215553. The reversal of 2110215540 is 455120112.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 406377 + ... + 411536.

It is an arithmetic number, because the mean of its divisors is an integer number (125958756).

Almost surely, 2^2110215540 is an apocalyptic number.

2110215540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2110215540 is an abundant number, since it is smaller than the sum of its proper divisors (3935804748).

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

2110215540 is a wasteful number, since it uses less digits than its factorization.

2110215540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817968 (or 817966 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2110215540 is about 45937.0824062652. The cubic root of 2110215540 is about 1282.6522844298.

Adding to 2110215540 its reverse (455120112), we get a palindrome (2565335652).

The spelling of 2110215540 in words is "two billion, one hundred ten million, two hundred fifteen thousand, five hundred forty".