111101012020101 has 16 divisors (see below), whose sum is σ = 149608600727040. Its totient is φ = 73330453291200.

The previous prime is 111101012020099. The next prime is 111101012020169. The reversal of 111101012020101 is 101020210101111.

It is not a de Polignac number, because 111101012020101 - 2¹ = 111101012020099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111101012020171) 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, 2589781 + ... + 15129738.

It is an arithmetic number, because the mean of its divisors is an integer number (9350537545440).

Almost surely, 2^{111101012020101} is an apocalyptic number.

It is an amenable number.

111101012020101 is a deficient number, since it is larger than the sum of its proper divisors (38507588706939).

111101012020101 is a wasteful number, since it uses less digits than its factorization.

111101012020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17740316.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111101012020101 its reverse (101020210101111), we get a palindrome (212121222121212).

The spelling of 111101012020101 in words is "one hundred eleven trillion, one hundred one billion, twelve million, twenty thousand, one hundred one".