111110120101221 has 8 divisors (see below), whose sum is σ = 155944028212320. Its totient is φ = 70174812695472.

The previous prime is 111110120101219. The next prime is 111110120101229. The reversal of 111110120101221 is 122101021011111.

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

It is not a de Polignac number, because 111110120101221 - 2¹ = 111110120101219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111110120101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111110120101229) 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, 974650176270 + ... + 974650176383.

It is an arithmetic number, because the mean of its divisors is an integer number (19493003526540).

Almost surely, 2^{111110120101221} is an apocalyptic number.

It is an amenable number.

111110120101221 is a deficient number, since it is larger than the sum of its proper divisors (44833908111099).

111110120101221 is a wasteful number, since it uses less digits than its factorization.

111110120101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949300352675.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111110120101221 its reverse (122101021011111), we get a palindrome (233211141112332).

The spelling of 111110120101221 in words is "one hundred eleven trillion, one hundred ten billion, one hundred twenty million, one hundred one thousand, two hundred twenty-one".