2182221930 has 64 divisors (see below), whose sum is σ = 6083682048. Its totient is φ = 490613760.

The previous prime is 2182221911. The next prime is 2182221931. The reversal of 2182221930 is 391222812.

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

It is not an unprimeable number, because it can be changed into a prime (2182221931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72367 + ... + 97986.

It is an arithmetic number, because the mean of its divisors is an integer number (95057532).

Almost surely, 2^2182221930 is an apocalyptic number.

2182221930 is an abundant number, since it is smaller than the sum of its proper divisors (3901460118).

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

2182221930 is a wasteful number, since it uses less digits than its factorization.

2182221930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170431.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 2182221930 is about 46714.2583158504. The cubic root of 2182221930 is about 1297.0786333012.

The spelling of 2182221930 in words is "two billion, one hundred eighty-two million, two hundred twenty-one thousand, nine hundred thirty".