111002011111221 has 8 divisors (see below), whose sum is σ = 148011580753344. Its totient is φ = 73996891104960.

The previous prime is 111002011111099. The next prime is 111002011111241. The reversal of 111002011111221 is 122111110200111.

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

It is not a de Polignac number, because 111002011111221 - 2⁷ = 111002011111093 is a prime.

It is a super-2 number, since 2×111002011111221² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111002011111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111002011111241) 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, 1112350756 + ... + 1112450541.

It is an arithmetic number, because the mean of its divisors is an integer number (18501447594168).

Almost surely, 2^{111002011111221} is an apocalyptic number.

It is an amenable number.

111002011111221 is a deficient number, since it is larger than the sum of its proper divisors (37009569642123).

111002011111221 is a wasteful number, since it uses less digits than its factorization.

111002011111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224817931.

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

Adding to 111002011111221 its reverse (122111110200111), we get a palindrome (233113121311332).

The spelling of 111002011111221 in words is "one hundred eleven trillion, two billion, eleven million, one hundred eleven thousand, two hundred twenty-one".