122209999999999 has 4 divisors (see below), whose sum is σ = 122271504783064. Its totient is φ = 122148495216936.

The previous prime is 122209999999991. The next prime is 122210000000057. The reversal of 122209999999999 is 999999999902221.

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

It is a cyclic number.

It is not a de Polignac number, because 122209999999999 - 2³ = 122209999999991 is a prime.

It is a super-9 number, since 9×122209999999999⁹ (a number of 128 digits) contains 999999999 as substring.

It is a Duffinian number.

122209999999999 is a modest number, since divided by 99999999 gives 1222099 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 122209999999999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122209999999991) 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, 30752388552 + ... + 30752392525.

It is an arithmetic number, because the mean of its divisors is an integer number (30567876195766).

Almost surely, 2^{122209999999999} is an apocalyptic number.

122209999999999 is a deficient number, since it is larger than the sum of its proper divisors (61504783065).

122209999999999 is an equidigital number, since it uses as much as digits as its factorization.

122209999999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61504783064.

The product of its (nonzero) digits is 27894275208, while the sum is 97.

The spelling of 122209999999999 in words is "one hundred twenty-two trillion, two hundred nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".