111012212012201 has 8 divisors (see below), whose sum is σ = 111042364897800. Its totient is φ = 110982061315072.

The previous prime is 111012212012047. The next prime is 111012212012227. The reversal of 111012212012201 is 102210212210111.

It can be written as a sum of positive squares in 4 ways, for example, as 33207040128025 + 77805171884176 = 5762555^2 + 8820724^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111012212012201 - 2¹⁸ = 111012211750057 is a prime.

It is a super-2 number, since 2×111012212012201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111012212012201.

It is not an unprimeable number, because it can be changed into a prime (111012212012281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103601225 + ... + 104667273.

It is an arithmetic number, because the mean of its divisors is an integer number (13880295612225).

Almost surely, 2^{111012212012201} is an apocalyptic number.

It is an amenable number.

111012212012201 is a deficient number, since it is larger than the sum of its proper divisors (30152885599).

111012212012201 is a wasteful number, since it uses less digits than its factorization.

111012212012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094235.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111012212012201 its reverse (102210212210111), we get a palindrome (213222424222312).

The spelling of 111012212012201 in words is "one hundred eleven trillion, twelve billion, two hundred twelve million, twelve thousand, two hundred one".