111021001200221 has 8 divisors (see below), whose sum is σ = 126900601594944. Its totient is φ = 95146265147040.

The previous prime is 111021001200199. The next prime is 111021001200227. The reversal of 111021001200221 is 122002100120111.

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 111021001200221 - 2²⁶ = 111020934091357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111021001200196 and 111021001200205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111021001200227) 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, 1216036475 + ... + 1216127768.

It is an arithmetic number, because the mean of its divisors is an integer number (15862575199368).

Almost surely, 2^{111021001200221} is an apocalyptic number.

It is an amenable number.

111021001200221 is a deficient number, since it is larger than the sum of its proper divisors (15879600394723).

111021001200221 is an equidigital number, since it uses as much as digits as its factorization.

111021001200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432170771.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111021001200221 its reverse (122002100120111), we get a palindrome (233023101320332).

The spelling of 111021001200221 in words is "one hundred eleven trillion, twenty-one billion, one million, two hundred thousand, two hundred twenty-one".