111220020121101 has 8 divisors (see below), whose sum is σ = 148293648749664. Its totient is φ = 74146535786640.

The previous prime is 111220020121099. The next prime is 111220020121117. The reversal of 111220020121101 is 101121020022111.

It is a happy number.

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

It is not a de Polignac number, because 111220020121101 - 2¹ = 111220020121099 is a prime.

It is a super-2 number, since 2×111220020121101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220020121801) 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, 34262026 + ... + 37367451.

It is an arithmetic number, because the mean of its divisors is an integer number (18536706093708).

Almost surely, 2^{111220020121101} is an apocalyptic number.

It is an amenable number.

111220020121101 is a deficient number, since it is larger than the sum of its proper divisors (37073628628563).

111220020121101 is an equidigital number, since it uses as much as digits as its factorization.

111220020121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72147051.

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

Adding to 111220020121101 its reverse (101121020022111), we get a palindrome (212341040143212).

The spelling of 111220020121101 in words is "one hundred eleven trillion, two hundred twenty billion, twenty million, one hundred twenty-one thousand, one hundred one".