2226185220 has 96 divisors (see below), whose sum is σ = 7161348096. Its totient is φ = 506160000.

The previous prime is 2226185209. The next prime is 2226185239. The reversal of 2226185220 is 225816222.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66345 + ... + 94095.

It is an arithmetic number, because the mean of its divisors is an integer number (74597376).

Almost surely, 2^2226185220 is an apocalyptic number.

2226185220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2226185220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3580674048).

2226185220 is an abundant number, since it is smaller than the sum of its proper divisors (4935162876).

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

2226185220 is a wasteful number, since it uses less digits than its factorization.

2226185220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27961 (or 27959 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 2226185220 is about 47182.4672945364. The cubic root of 2226185220 is about 1305.7311503013.

The spelling of 2226185220 in words is "two billion, two hundred twenty-six million, one hundred eighty-five thousand, two hundred twenty".