112020221009 has 2 divisors, whose sum is σ = 112020221010. Its totient is φ = 112020221008.

The previous prime is 112020220933. The next prime is 112020221023. The reversal of 112020221009 is 900122020211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102822835600 + 9197385409 = 320660^2 + 95903^2 .

It is a cyclic number.

It is not a de Polignac number, because 112020221009 - 2²⁸ = 111751785553 is a prime.

It is not a weakly prime, because it can be changed into another prime (112020220009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56010110504 + 56010110505.

It is an arithmetic number, because the mean of its divisors is an integer number (56010110505).

Almost surely, 2^112020221009 is an apocalyptic number.

It is an amenable number.

112020221009 is a deficient number, since it is larger than the sum of its proper divisors (1).

112020221009 is an equidigital number, since it uses as much as digits as its factorization.

112020221009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 112020221009 in words is "one hundred twelve billion, twenty million, two hundred twenty-one thousand, nine".