111141420221 has 8 divisors (see below), whose sum is σ = 119703709944. Its totient is φ = 102580980480.

The previous prime is 111141420161. The next prime is 111141420263. The reversal of 111141420221 is 122024141111.

It can be written as a sum of positive squares in 4 ways, for example, as 44001355225 + 67140064996 = 209765^2 + 259114^2 .

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 111141420221 - 2²² = 111137225917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111141420193 and 111141420202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111141420281) 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, 336440 + ... + 579201.

It is an arithmetic number, because the mean of its divisors is an integer number (14962963743).

Almost surely, 2^111141420221 is an apocalyptic number.

It is an amenable number.

111141420221 is a deficient number, since it is larger than the sum of its proper divisors (8562289723).

111141420221 is an equidigital number, since it uses as much as digits as its factorization.

111141420221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924991.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 111141420221 its reverse (122024141111), we get a palindrome (233165561332).

The spelling of 111141420221 in words is "one hundred eleven billion, one hundred forty-one million, four hundred twenty thousand, two hundred twenty-one".