2220400442220 has 48 divisors (see below), whose sum is σ = 6220759396320. Its totient is φ = 591760293376.

The previous prime is 2220400442213. The next prime is 2220400442243. The reversal of 2220400442220 is 222440040222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10724457 + ... + 10929536.

It is an arithmetic number, because the mean of its divisors is an integer number (129599154090).

Almost surely, 2^{2220400442220} is an apocalyptic number.

2220400442220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220400442220 is an abundant number, since it is smaller than the sum of its proper divisors (4000358954100).

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

2220400442220 is a wasteful number, since it uses less digits than its factorization.

2220400442220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21655714 (or 21655712 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 2220400442220 its reverse (222440040222), we get a palindrome (2442840482442).

The spelling of 2220400442220 in words is "two trillion, two hundred twenty billion, four hundred million, four hundred forty-two thousand, two hundred twenty".