220110121212011 has 4 divisors (see below), whose sum is σ = 220138555546224. Its totient is φ = 220081686877800.

The previous prime is 220110121211947. The next prime is 220110121212013. The reversal of 220110121212011 is 110212121011022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220110121212011 - 2⁶ = 220110121211947 is a prime.

It is a super-2 number, since 2×220110121212011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220110121212013) 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 3 ways as a sum of consecutive naturals, for example, 14217155495 + ... + 14217170976.

It is an arithmetic number, because the mean of its divisors is an integer number (55034638886556).

Almost surely, 2^{220110121212011} is an apocalyptic number.

220110121212011 is a deficient number, since it is larger than the sum of its proper divisors (28434334213).

220110121212011 is an equidigital number, since it uses as much as digits as its factorization.

220110121212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28434334212.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 220110121212011 its reverse (110212121011022), we get a palindrome (330322242223033).

The spelling of 220110121212011 in words is "two hundred twenty trillion, one hundred ten billion, one hundred twenty-one million, two hundred twelve thousand, eleven".