2104222520 has 16 divisors (see below), whose sum is σ = 4734500760. Its totient is φ = 841688992.

The previous prime is 2104222499. The next prime is 2104222529. The reversal of 2104222520 is 252224012.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2104222492 and 2104222501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104222529) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 26302742 + ... + 26302821.

Almost surely, 2^2104222520 is an apocalyptic number.

2104222520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2104222520 is an abundant number, since it is smaller than the sum of its proper divisors (2630278240).

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

2104222520 is a wasteful number, since it uses less digits than its factorization.

2104222520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52605574 (or 52605570 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2104222520 is about 45871.8052838560. The cubic root of 2104222520 is about 1281.4368873688.

Adding to 2104222520 its reverse (252224012), we get a palindrome (2356446532).

The spelling of 2104222520 in words is "two billion, one hundred four million, two hundred twenty-two thousand, five hundred twenty".