111210220202101 has 8 divisors (see below), whose sum is σ = 111256886083640. Its totient is φ = 111163556806848.

The previous prime is 111210220202087. The next prime is 111210220202119. The reversal of 111210220202101 is 101202022012111.

It can be written as a sum of positive squares in 4 ways, for example, as 66786062331076 + 44424157871025 = 8172274^2 + 6665145^2 .

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 111210220202101 - 2⁵ = 111210220202069 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 (111210220202141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91728475 + ... + 92932951.

It is an arithmetic number, because the mean of its divisors is an integer number (13907110760455).

Almost surely, 2^{111210220202101} is an apocalyptic number.

It is an amenable number.

111210220202101 is a deficient number, since it is larger than the sum of its proper divisors (46665881539).

111210220202101 is a wasteful number, since it uses less digits than its factorization.

111210220202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243143.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111210220202101 its reverse (101202022012111), we get a palindrome (212412242214212).

The spelling of 111210220202101 in words is "one hundred eleven trillion, two hundred ten billion, two hundred twenty million, two hundred two thousand, one hundred one".