220223213161 has 12 divisors (see below), whose sum is σ = 256186991568. Its totient is φ = 188756146152.

The previous prime is 220223213099. The next prime is 220223213201. The reversal of 220223213161 is 161312322022.

220223213161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-220223213161 is a prime.

It is a super-2 number, since 2×220223213161² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220223213461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1777930 + ... + 1897756.

It is an arithmetic number, because the mean of its divisors is an integer number (21348915964).

Almost surely, 2^220223213161 is an apocalyptic number.

It is an amenable number.

220223213161 is a deficient number, since it is larger than the sum of its proper divisors (35963778407).

220223213161 is a wasteful number, since it uses less digits than its factorization.

220223213161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157348 (or 157341 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 220223213161 its reverse (161312322022), we get a palindrome (381535535183).

The spelling of 220223213161 in words is "two hundred twenty billion, two hundred twenty-three million, two hundred thirteen thousand, one hundred sixty-one".