111101220121101 has 8 divisors (see below), whose sum is σ = 169297097327424. Its totient is φ = 63486411497760.

The previous prime is 111101220121033. The next prime is 111101220121121. The reversal of 111101220121101 is 101121022101111.

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

It is not a de Polignac number, because 111101220121101 - 2¹¹ = 111101220119053 is a prime.

It is a super-2 number, since 2×111101220121101² (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 (111101220121121) 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, 2645267145720 + ... + 2645267145761.

It is an arithmetic number, because the mean of its divisors is an integer number (21162137165928).

Almost surely, 2^{111101220121101} is an apocalyptic number.

It is an amenable number.

111101220121101 is a deficient number, since it is larger than the sum of its proper divisors (58195877206323).

111101220121101 is an equidigital number, since it uses as much as digits as its factorization.

111101220121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5290534291491.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111101220121101 its reverse (101121022101111), we get a palindrome (212222242222212).

The spelling of 111101220121101 in words is "one hundred eleven trillion, one hundred one billion, two hundred twenty million, one hundred twenty-one thousand, one hundred one".