222959721992 has 60 divisors (see below), whose sum is σ = 487838559855. Its totient is φ = 95526120144.

The previous prime is 222959721983. The next prime is 222959722019. The reversal of 222959721992 is 299127959222.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 111479860996 + 111479860996 = 333886^2 + 333886^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=333886.

It is a super-2 number, since 2×222959721992² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 65439953 + ... + 65443359.

Almost surely, 2^222959721992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222959721992

222959721992 is an abundant number, since it is smaller than the sum of its proper divisors (264878837863).

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

222959721992 is an frugal number, since it uses more digits than its factorization.

222959721992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6848 (or 3416 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 59.

The spelling of 222959721992 in words is "two hundred twenty-two billion, nine hundred fifty-nine million, seven hundred twenty-one thousand, nine hundred ninety-two".