2224215666 has 16 divisors (see below), whose sum is σ = 4942701600. Its totient is φ = 741405204.

The previous prime is 2224215661. The next prime is 2224215671. The reversal of 2224215666 is 6665124222.

It is an interprime number because it is at equal distance from previous prime (2224215661) and next prime (2224215671).

It is a self number, because there is not a number n which added to its sum of digits gives 2224215666.

It is not an unprimeable number, because it can be changed into a prime (2224215661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20594536 + ... + 20594643.

It is an arithmetic number, because the mean of its divisors is an integer number (308918850).

Almost surely, 2^2224215666 is an apocalyptic number.

2224215666 is an abundant number, since it is smaller than the sum of its proper divisors (2718485934).

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

2224215666 is a wasteful number, since it uses less digits than its factorization.

2224215666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41189190 (or 41189184 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 2224215666 is about 47161.5910036971. The cubic root of 2224215666 is about 1305.3459671975.

Adding to 2224215666 its reverse (6665124222), we get a palindrome (8889339888).

The spelling of 2224215666 in words is "two billion, two hundred twenty-four million, two hundred fifteen thousand, six hundred sixty-six".