222151446320 has 20 divisors (see below), whose sum is σ = 516502112880. Its totient is φ = 88860578496.

The previous prime is 222151446313. The next prime is 222151446323. The reversal of 222151446320 is 23644151222.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (222151446323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388446460 + ... + 1388446619.

It is an arithmetic number, because the mean of its divisors is an integer number (25825105644).

Almost surely, 2^222151446320 is an apocalyptic number.

222151446320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222151446320 is an abundant number, since it is smaller than the sum of its proper divisors (294350666560).

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

222151446320 is a wasteful number, since it uses less digits than its factorization.

222151446320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776893092 (or 2776893086 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 222151446320 its reverse (23644151222), we get a palindrome (245795597542).

The spelling of 222151446320 in words is "two hundred twenty-two billion, one hundred fifty-one million, four hundred forty-six thousand, three hundred twenty".