2229271220 has 48 divisors (see below), whose sum is σ = 5112374400. Its totient is φ = 809800320.

The previous prime is 2229271211. The next prime is 2229271223. The reversal of 2229271220 is 221729222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2229271223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230441 + ... + 239919.

It is an arithmetic number, because the mean of its divisors is an integer number (106507800).

Almost surely, 2^2229271220 is an apocalyptic number.

2229271220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2229271220 is an abundant number, since it is smaller than the sum of its proper divisors (2883103180).

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

2229271220 is a wasteful number, since it uses less digits than its factorization.

2229271220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10568 (or 10566 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 2229271220 is about 47215.1587946075. The cubic root of 2229271220 is about 1306.3342186949.

The spelling of 2229271220 in words is "two billion, two hundred twenty-nine million, two hundred seventy-one thousand, two hundred twenty".