122010110111009 has 2 divisors, whose sum is σ = 122010110111010. Its totient is φ = 122010110111008.

The previous prime is 122010110110979. The next prime is 122010110111063. The reversal of 122010110111009 is 900111011010221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116488244592784 + 5521865518225 = 10792972^2 + 2349865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122010110111009 is a prime.

It is a super-2 number, since 2×122010110111009² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122010110111209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61005055055504 + 61005055055505.

It is an arithmetic number, because the mean of its divisors is an integer number (61005055055505).

Almost surely, 2^{122010110111009} is an apocalyptic number.

It is an amenable number.

122010110111009 is a deficient number, since it is larger than the sum of its proper divisors (1).

122010110111009 is an equidigital number, since it uses as much as digits as its factorization.

122010110111009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 122010110111009 in words is "one hundred twenty-two trillion, ten billion, one hundred ten million, one hundred eleven thousand, nine".