111212245020245 has 8 divisors (see below), whose sum is σ = 135972707119416. Its totient is φ = 87291120619456.

The previous prime is 111212245020241. The next prime is 111212245020277. The reversal of 111212245020245 is 542020542212111.

It can be written as a sum of positive squares in 4 ways, for example, as 42012357109636 + 69199887910609 = 6481694^2 + 8318647^2 .

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 111212245020245 - 2² = 111212245020241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111212245020241) 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, 209834424302 + ... + 209834424831.

It is an arithmetic number, because the mean of its divisors is an integer number (16996588389927).

Almost surely, 2^{111212245020245} is an apocalyptic number.

It is an amenable number.

111212245020245 is a deficient number, since it is larger than the sum of its proper divisors (24760462099171).

111212245020245 is an equidigital number, since it uses as much as digits as its factorization.

111212245020245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419668849191.

The product of its (nonzero) digits is 12800, while the sum is 32.

Adding to 111212245020245 its reverse (542020542212111), we get a palindrome (653232787232356).

The spelling of 111212245020245 in words is "one hundred eleven trillion, two hundred twelve billion, two hundred forty-five million, twenty thousand, two hundred forty-five".