111220201102101 has 48 divisors (see below), whose sum is σ = 186980637292416. Its totient is φ = 57558702359808.

The previous prime is 111220201102067. The next prime is 111220201102103. The reversal of 111220201102101 is 101201102022111.

It is a happy number.

It is not a de Polignac number, because 111220201102101 - 2²³ = 111220192713493 is a prime.

It is a super-4 number, since 4×111220201102101⁴ (a number of 57 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220201102103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 295457770 + ... + 295833963.

It is an arithmetic number, because the mean of its divisors is an integer number (3895429943592).

Almost surely, 2^{111220201102101} is an apocalyptic number.

It is an amenable number.

111220201102101 is a deficient number, since it is larger than the sum of its proper divisors (75760436190315).

111220201102101 is a wasteful number, since it uses less digits than its factorization.

111220201102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591291822 (or 591291809 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111220201102101 its reverse (101201102022111), we get a palindrome (212421303124212).

The spelling of 111220201102101 in words is "one hundred eleven trillion, two hundred twenty billion, two hundred one million, one hundred two thousand, one hundred one".