2222212320 has 120 divisors (see below), whose sum is σ = 7842603384. Its totient is φ = 592586496.

The previous prime is 2222212301. The next prime is 2222212327. The reversal of 2222212320 is 232122222.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2222212293 and 2222212302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222212327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 72774 + ... + 98693.

Almost surely, 2^2222212320 is an apocalyptic number.

2222212320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222212320 is an abundant number, since it is smaller than the sum of its proper divisors (5620391064).

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

2222212320 is a wasteful number, since it uses less digits than its factorization.

2222212320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171494 (or 171477 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2222212320 is about 47140.3470500589. The cubic root of 2222212320 is about 1304.9539420923.

Adding to 2222212320 its reverse (232122222), we get a palindrome (2454334542).

The spelling of 2222212320 in words is "two billion, two hundred twenty-two million, two hundred twelve thousand, three hundred twenty".