111002310213221 has 4 divisors (see below), whose sum is σ = 126859783100832. Its totient is φ = 95144837325612.

The previous prime is 111002310213211. The next prime is 111002310213287. The reversal of 111002310213221 is 122312013200111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111002310213221 - 2¹⁴ = 111002310196837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111002310213193 and 111002310213202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111002310213211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7928736443795 + ... + 7928736443808.

It is an arithmetic number, because the mean of its divisors is an integer number (31714945775208).

Almost surely, 2^{111002310213221} is an apocalyptic number.

It is an amenable number.

111002310213221 is a deficient number, since it is larger than the sum of its proper divisors (15857472887611).

111002310213221 is an equidigital number, since it uses as much as digits as its factorization.

111002310213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15857472887610.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 111002310213221 its reverse (122312013200111), we get a palindrome (233314323413332).

The spelling of 111002310213221 in words is "one hundred eleven trillion, two billion, three hundred ten million, two hundred thirteen thousand, two hundred twenty-one".