111020313221 has 8 divisors (see below), whose sum is σ = 112194965760. Its totient is φ = 109851578928.

The previous prime is 111020313199. The next prime is 111020313233. The reversal of 111020313221 is 122313020111.

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 111020313221 - 2¹⁴ = 111020296837 is a prime.

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 111020313221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020313241) 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, 1441841 + ... + 1516886.

It is an arithmetic number, because the mean of its divisors is an integer number (14024370720).

Almost surely, 2^111020313221 is an apocalyptic number.

It is an amenable number.

111020313221 is a deficient number, since it is larger than the sum of its proper divisors (1174652539).

111020313221 is a wasteful number, since it uses less digits than its factorization.

111020313221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2959123.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 111020313221 its reverse (122313020111), we get a palindrome (233333333332).

The spelling of 111020313221 in words is "one hundred eleven billion, twenty million, three hundred thirteen thousand, two hundred twenty-one".