111111220010101 has 8 divisors (see below), whose sum is σ = 111481237168704. Its totient is φ = 110741284559520.

The previous prime is 111111220010099. The next prime is 111111220010269. The reversal of 111111220010101 is 101010022111111.

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 111111220010101 - 2¹ = 111111220010099 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 (111111220070101) 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, 17702160 + ... + 23142793.

It is an arithmetic number, because the mean of its divisors is an integer number (13935154646088).

Almost surely, 2^{111111220010101} is an apocalyptic number.

It is an amenable number.

111111220010101 is a deficient number, since it is larger than the sum of its proper divisors (370017158603).

111111220010101 is an equidigital number, since it uses as much as digits as its factorization.

111111220010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40854011.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111111220010101 its reverse (101010022111111), we get a palindrome (212121242121212).

The spelling of 111111220010101 in words is "one hundred eleven trillion, one hundred eleven billion, two hundred twenty million, ten thousand, one hundred one".