2212457520 has 640 divisors, whose sum is σ = 9179412480. Its totient is φ = 427622400.

The previous prime is 2212457519. The next prime is 2212457521. The reversal of 2212457520 is 257542122.

2212457520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2212457519) and next prime (2212457521).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (2212457521) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 21905470 + ... + 21905570.

It is an arithmetic number, because the mean of its divisors is an integer number (14342832).

Almost surely, 2^2212457520 is an apocalyptic number.

2212457520 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 2212457520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4589706240).

2212457520 is an abundant number, since it is smaller than the sum of its proper divisors (6966954960).

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

2212457520 is a wasteful number, since it uses less digits than its factorization.

2212457520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 2212457520 is about 47036.7677460941. The cubic root of 2212457520 is about 1303.0416980951.

Adding to 2212457520 its reverse (257542122), we get a palindrome (2469999642).

The spelling of 2212457520 in words is "two billion, two hundred twelve million, four hundred fifty-seven thousand, five hundred twenty".