220110110202021 has 16 divisors (see below), whose sum is σ = 316249799578944. Its totient is φ = 135369122626944.

The previous prime is 220110110202007. The next prime is 220110110202041. The reversal of 220110110202021 is 120202011011022.

It is not a de Polignac number, because 220110110202021 - 2²⁷ = 220109975984293 is a prime.

It is a super-2 number, since 2×220110110202021² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220110110202041) 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 15 ways as a sum of consecutive naturals, for example, 1734370776 + ... + 1734497681.

It is an arithmetic number, because the mean of its divisors is an integer number (19765612473684).

Almost surely, 2^{220110110202021} is an apocalyptic number.

It is an amenable number.

220110110202021 is a deficient number, since it is larger than the sum of its proper divisors (96139689376923).

220110110202021 is a wasteful number, since it uses less digits than its factorization.

220110110202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3468870100.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 220110110202021 its reverse (120202011011022), we get a palindrome (340312121213043).

The spelling of 220110110202021 in words is "two hundred twenty trillion, one hundred ten billion, one hundred ten million, two hundred two thousand, twenty-one".