2220211440 has 60 divisors (see below), whose sum is σ = 7456212504. Its totient is φ = 592056192.

The previous prime is 2220211439. The next prime is 2220211471. The reversal of 2220211440 is 441120222.

2220211440 is a `hidden beast` number, since 2 + 220 + 2 + 1 + 1 + 440 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1541094 + ... + 1542533.

Almost surely, 2^2220211440 is an apocalyptic number.

2220211440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220211440 is an abundant number, since it is smaller than the sum of its proper divisors (5236001064).

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

2220211440 is a wasteful number, since it uses less digits than its factorization.

2220211440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3083646 (or 3083637 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2220211440 is about 47119.1196861741. The cubic root of 2220211440 is about 1304.5621643014.

Adding to 2220211440 its reverse (441120222), we get a palindrome (2661331662).

The spelling of 2220211440 in words is "two billion, two hundred twenty million, two hundred eleven thousand, four hundred forty".