111022122221209 has 4 divisors (see below), whose sum is σ = 111046528056100. Its totient is φ = 110997716386320.

The previous prime is 111022122221119. The next prime is 111022122221243. The reversal of 111022122221209 is 902122221220111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31537265798025 + 79484856423184 = 5615805^2 + 8915428^2 .

It is a cyclic number.

It is not a de Polignac number, because 111022122221209 - 2¹³ = 111022122213017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111022122221299) 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, 12202910622 + ... + 12202919719.

It is an arithmetic number, because the mean of its divisors is an integer number (27761632014025).

Almost surely, 2^{111022122221209} is an apocalyptic number.

It is an amenable number.

111022122221209 is a deficient number, since it is larger than the sum of its proper divisors (24405834891).

111022122221209 is an equidigital number, since it uses as much as digits as its factorization.

111022122221209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24405834890.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 111022122221209 in words is "one hundred eleven trillion, twenty-two billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred nine".