2220421264 has 40 divisors (see below), whose sum is σ = 4378449920. Its totient is φ = 1090774944.

The previous prime is 2220421261. The next prime is 2220421267. The reversal of 2220421264 is 4621240222.

It is an interprime number because it is at equal distance from previous prime (2220421261) and next prime (2220421267).

It is not an unprimeable number, because it can be changed into a prime (2220421261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17483569 + ... + 17483695.

It is an arithmetic number, because the mean of its divisors is an integer number (109461248).

Almost surely, 2^2220421264 is an apocalyptic number.

It is an amenable number.

2220421264 is a deficient number, since it is larger than the sum of its proper divisors (2158028656).

2220421264 is an frugal number, since it uses more digits than its factorization.

2220421264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 2220421264 is about 47121.3461607370. The cubic root of 2220421264 is about 1304.6032594608.

Adding to 2220421264 its reverse (4621240222), we get a palindrome (6841661486).

The spelling of 2220421264 in words is "two billion, two hundred twenty million, four hundred twenty-one thousand, two hundred sixty-four".