111201221022001 has 16 divisors (see below), whose sum is σ = 122564193490368. Its totient is φ = 100047263846400.

The previous prime is 111201221021951. The next prime is 111201221022029. The reversal of 111201221022001 is 100220122102111.

It is not a de Polignac number, because 111201221022001 - 2²⁷ = 111201086804273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111201221022071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40850386 + ... + 43487428.

It is an arithmetic number, because the mean of its divisors is an integer number (7660262093148).

Almost surely, 2^{111201221022001} is an apocalyptic number.

111201221022001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111201221022001 is a deficient number, since it is larger than the sum of its proper divisors (11362972468367).

111201221022001 is a wasteful number, since it uses less digits than its factorization.

111201221022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676672.

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

Adding to 111201221022001 its reverse (100220122102111), we get a palindrome (211421343124112).

The spelling of 111201221022001 in words is "one hundred eleven trillion, two hundred one billion, two hundred twenty-one million, twenty-two thousand, one".