111201010012221 has 8 divisors (see below), whose sum is σ = 152275256953824. Its totient is φ = 72130384872720.

The previous prime is 111201010012201. The next prime is 111201010012247. The reversal of 111201010012221 is 122210010102111.

It is a happy number.

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

It is not a de Polignac number, because 111201010012221 - 2¹⁹ = 111201009487933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111201010012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111201010012201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500905450395 + ... + 500905450616.

It is an arithmetic number, because the mean of its divisors is an integer number (19034407119228).

Almost surely, 2^{111201010012221} is an apocalyptic number.

It is an amenable number.

111201010012221 is a deficient number, since it is larger than the sum of its proper divisors (41074246941603).

111201010012221 is a wasteful number, since it uses less digits than its factorization.

111201010012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001810901051.

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

Adding to 111201010012221 its reverse (122210010102111), we get a palindrome (233411020114332).

The spelling of 111201010012221 in words is "one hundred eleven trillion, two hundred one billion, ten million, twelve thousand, two hundred twenty-one".