220110121220210 has 16 divisors (see below), whose sum is σ = 426675004211736. Its totient is φ = 81271429373568.

The previous prime is 220110121220207. The next prime is 220110121220221. The reversal of 220110121220210 is 12022121011022.

It can be written as a sum of positive squares in 4 ways, for example, as 193621631210401 + 26488490009809 = 13914799^2 + 5146697^2 .

It is a super-4 number, since 4×220110121220210⁴ (a number of 58 digits) contains 4444 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 846577389179 + ... + 846577389438.

Almost surely, 2^{220110121220210} is an apocalyptic number.

220110121220210 is a deficient number, since it is larger than the sum of its proper divisors (206564882991526).

220110121220210 is a wasteful number, since it uses less digits than its factorization.

220110121220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693154778637.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220110121220210 its reverse (12022121011022), we get a palindrome (232132242231232).

The spelling of 220110121220210 in words is "two hundred twenty trillion, one hundred ten billion, one hundred twenty-one million, two hundred twenty thousand, two hundred ten".