122220011111009 has 24 divisors (see below), whose sum is σ = 144775031186880. Its totient is φ = 102848371478496.

The previous prime is 122220011110999. The next prime is 122220011111063. The reversal of 122220011111009 is 900111110022221.

It is a happy number.

It is not a de Polignac number, because 122220011111009 - 2⁸ = 122220011110753 is a prime.

It is a super-2 number, since 2×122220011111009² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122220011111089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25734917 + ... + 30111890.

It is an arithmetic number, because the mean of its divisors is an integer number (6032292966120).

Almost surely, 2^{122220011111009} is an apocalyptic number.

It is an amenable number.

122220011111009 is a deficient number, since it is larger than the sum of its proper divisors (22555020075871).

122220011111009 is an equidigital number, since it uses as much as digits as its factorization.

122220011111009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55847637 (or 55847630 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 122220011111009 in words is "one hundred twenty-two trillion, two hundred twenty billion, eleven million, one hundred eleven thousand, nine".