2211245520 has 160 divisors (see below), whose sum is σ = 7552980864. Its totient is φ = 530688000.

The previous prime is 2211245431. The next prime is 2211245567. The reversal of 2211245520 is 255421122.

2211245520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262494 + ... + 270786.

Almost surely, 2^2211245520 is an apocalyptic number.

2211245520 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 2211245520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3776490432).

2211245520 is an abundant number, since it is smaller than the sum of its proper divisors (5341735344).

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

2211245520 is a wasteful number, since it uses less digits than its factorization.

2211245520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8421 (or 8415 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2211245520 is about 47023.8824428609. The cubic root of 2211245520 is about 1302.8037161236.

Adding to 2211245520 its reverse (255421122), we get a palindrome (2466666642).

The spelling of 2211245520 in words is "two billion, two hundred eleven million, two hundred forty-five thousand, five hundred twenty".