2216125520 has 80 divisors (see below), whose sum is σ = 6078563328. Its totient is φ = 735298560.

The previous prime is 2216125507. The next prime is 2216125523. The reversal of 2216125520 is 255216122.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×2216125520² = 9822424640790540800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2216125520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216125523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46469 + ... + 81188.

Almost surely, 2^2216125520 is an apocalyptic number.

2216125520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2216125520 is an abundant number, since it is smaller than the sum of its proper divisors (3862437808).

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

2216125520 is a wasteful number, since it uses less digits than its factorization.

2216125520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127708 (or 127702 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2216125520 is about 47075.7423733285. The cubic root of 2216125520 is about 1303.7613982501.

The spelling of 2216125520 in words is "two billion, two hundred sixteen million, one hundred twenty-five thousand, five hundred twenty".