111201102101 has 4 divisors (see below), whose sum is σ = 111843883212. Its totient is φ = 110558320992.

The previous prime is 111201102091. The next prime is 111201102109. The reversal of 111201102101 is 101201102111.

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 107495458225 + 3705643876 = 327865^2 + 60874^2 .

It is a cyclic number.

It is not a de Polignac number, because 111201102101 - 2¹⁸ = 111200839957 is a prime.

It is a super-2 number, since 2×111201102101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111201102109) 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, 321390296 + ... + 321390641.

It is an arithmetic number, because the mean of its divisors is an integer number (27960970803).

Almost surely, 2^111201102101 is an apocalyptic number.

It is an amenable number.

111201102101 is a deficient number, since it is larger than the sum of its proper divisors (642781111).

111201102101 is an equidigital number, since it uses as much as digits as its factorization.

111201102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642781110.

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

Adding to 111201102101 its reverse (101201102111), we get a palindrome (212402204212).

The spelling of 111201102101 in words is "one hundred eleven billion, two hundred one million, one hundred two thousand, one hundred one".