2244022220 has 24 divisors (see below), whose sum is σ = 5140851408. Its totient is φ = 816008000.

The previous prime is 2244022217. The next prime is 2244022243. The reversal of 2244022220 is 222204422.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2244022192 and 2244022201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5099831 + ... + 5100270.

It is an arithmetic number, because the mean of its divisors is an integer number (214202142).

Almost surely, 2^2244022220 is an apocalyptic number.

2244022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2244022220 is an abundant number, since it is smaller than the sum of its proper divisors (2896829188).

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

2244022220 is a wasteful number, since it uses less digits than its factorization.

2244022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10200121 (or 10200119 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 2244022220 is about 47371.1116610113. Note that the first 3 decimals coincide. The cubic root of 2244022220 is about 1309.2092074778.

Adding to 2244022220 its reverse (222204422), we get a palindrome (2466226642).

It can be divided in two parts, 224402 and 2220, that added together give a palindrome (226622).

The spelling of 2244022220 in words is "two billion, two hundred forty-four million, twenty-two thousand, two hundred twenty".