111101012020001 has 16 divisors (see below), whose sum is σ = 113885072313600. Its totient is φ = 108348202227600.

The previous prime is 111101012019989. The next prime is 111101012020003. The reversal of 111101012020001 is 100020210101111.

It is a cyclic number.

It is not a de Polignac number, because 111101012020001 - 2⁴² = 106702965508897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111101012020003) 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, 5340686 + ... + 15834296.

It is an arithmetic number, because the mean of its divisors is an integer number (7117817019600).

Almost surely, 2^{111101012020001} is an apocalyptic number.

It is an amenable number.

111101012020001 is a deficient number, since it is larger than the sum of its proper divisors (2784060293599).

111101012020001 is a wasteful number, since it uses less digits than its factorization.

111101012020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10495100.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111101012020001 its reverse (100020210101111), we get a palindrome (211121222121112).

The spelling of 111101012020001 in words is "one hundred eleven trillion, one hundred one billion, twelve million, twenty thousand, one".