20110010220101 has 4 divisors (see below), whose sum is σ = 21292951997772. Its totient is φ = 18927068442432.

The previous prime is 20110010220077. The next prime is 20110010220107. The reversal of 20110010220101 is 10102201001102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7132371422500 + 12977638797601 = 2670650^2 + 3602449^2 .

It is a cyclic number.

It is not a de Polignac number, because 20110010220101 - 2³⁴ = 20092830350917 is a prime.

It is a super-2 number, since 2×20110010220101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110010220107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591470888810 + ... + 591470888843.

It is an arithmetic number, because the mean of its divisors is an integer number (5323237999443).

Almost surely, 2^{20110010220101} is an apocalyptic number.

It is an amenable number.

20110010220101 is a deficient number, since it is larger than the sum of its proper divisors (1182941777671).

20110010220101 is a wasteful number, since it uses less digits than its factorization.

20110010220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182941777670.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20110010220101 its reverse (10102201001102), we get a palindrome (30212211221203).

The spelling of 20110010220101 in words is "twenty trillion, one hundred ten billion, ten million, two hundred twenty thousand, one hundred one".