111210022120009 has 2 divisors, whose sum is σ = 111210022120010. Its totient is φ = 111210022120008.

The previous prime is 111210022120007. The next prime is 111210022120051. The reversal of 111210022120009 is 900021220012111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110295091609609 + 914930510400 = 10502147^2 + 956520^2 .

It is a cyclic number.

It is not a de Polignac number, because 111210022120009 - 2¹ = 111210022120007 is a prime.

Together with 111210022120007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (111210022120007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55605011060004 + 55605011060005.

It is an arithmetic number, because the mean of its divisors is an integer number (55605011060005).

Almost surely, 2^{111210022120009} is an apocalyptic number.

It is an amenable number.

111210022120009 is a deficient number, since it is larger than the sum of its proper divisors (1).

111210022120009 is an equidigital number, since it uses as much as digits as its factorization.

111210022120009 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 22.

The spelling of 111210022120009 in words is "one hundred eleven trillion, two hundred ten billion, twenty-two million, one hundred twenty thousand, nine".