111121012010201 has 4 divisors (see below), whose sum is σ = 113217634878372. Its totient is φ = 109024389142032.

The previous prime is 111121012010119. The next prime is 111121012010237. The reversal of 111121012010201 is 102010210121111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53021188849225 + 58099823160976 = 7281565^2 + 7622324^2 .

It is a cyclic number.

It is not a de Polignac number, because 111121012010201 - 2³⁴ = 111103832141017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111121012010501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1048311434006 + ... + 1048311434111.

It is an arithmetic number, because the mean of its divisors is an integer number (28304408719593).

Almost surely, 2^{111121012010201} is an apocalyptic number.

It is an amenable number.

111121012010201 is a deficient number, since it is larger than the sum of its proper divisors (2096622868171).

111121012010201 is an equidigital number, since it uses as much as digits as its factorization.

111121012010201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096622868170.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111121012010201 its reverse (102010210121111), we get a palindrome (213131222131312).

The spelling of 111121012010201 in words is "one hundred eleven trillion, one hundred twenty-one billion, twelve million, ten thousand, two hundred one".