2212173920 has 48 divisors (see below), whose sum is σ = 5701380048. Its totient is φ = 804426240.

The previous prime is 2212173893. The next prime is 2212173923. The reversal of 2212173920 is 293712122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212173923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626699 + ... + 630218.

It is an arithmetic number, because the mean of its divisors is an integer number (118778751).

Almost surely, 2^2212173920 is an apocalyptic number.

2212173920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212173920 is an abundant number, since it is smaller than the sum of its proper divisors (3489206128).

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

2212173920 is a wasteful number, since it uses less digits than its factorization.

2212173920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256943 (or 1256935 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 2212173920 is about 47033.7529865521. The cubic root of 2212173920 is about 1302.9860196752.

The spelling of 2212173920 in words is "two billion, two hundred twelve million, one hundred seventy-three thousand, nine hundred twenty".