220111201010101 has 8 divisors (see below), whose sum is σ = 220741500417464. Its totient is φ = 219481410939840.

The previous prime is 220111201010083. The next prime is 220111201010189. The reversal of 220111201010101 is 101010102111022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25746754663876 + 194364446346225 = 5074126^2 + 13941465^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220111201010101 - 2¹⁷ = 220111200879029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220111201014101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126468726 + ... + 128197351.

It is an arithmetic number, because the mean of its divisors is an integer number (27592687552183).

Almost surely, 2^{220111201010101} is an apocalyptic number.

It is an amenable number.

220111201010101 is a deficient number, since it is larger than the sum of its proper divisors (630299407363).

220111201010101 is a wasteful number, since it uses less digits than its factorization.

220111201010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254668551.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 220111201010101 its reverse (101010102111022), we get a palindrome (321121303121123).

The spelling of 220111201010101 in words is "two hundred twenty trillion, one hundred eleven billion, two hundred one million, ten thousand, one hundred one".