111210120220101 has 16 divisors (see below), whose sum is σ = 179431454473344. Its totient is φ = 59810484824064.

The previous prime is 111210120220099. The next prime is 111210120220103. The reversal of 111210120220101 is 101022021012111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111210120220099) and next prime (111210120220103).

It is not a de Polignac number, because 111210120220101 - 2¹ = 111210120220099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111210120220103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155756470540 + ... + 155756471253.

It is an arithmetic number, because the mean of its divisors is an integer number (11214465904584).

Almost surely, 2^{111210120220101} is an apocalyptic number.

It is an amenable number.

111210120220101 is a deficient number, since it is larger than the sum of its proper divisors (68221334253243).

111210120220101 is a wasteful number, since it uses less digits than its factorization.

111210120220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311512941820.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111210120220101 its reverse (101022021012111), we get a palindrome (212232141232212).

The spelling of 111210120220101 in words is "one hundred eleven trillion, two hundred ten billion, one hundred twenty million, two hundred twenty thousand, one hundred one".