122621506122 has 16 divisors (see below), whose sum is σ = 251224549632. Its totient is φ = 39876912480.

The previous prime is 122621506121. The next prime is 122621506123. The reversal of 122621506122 is 221605126221.

It is an interprime number because it is at equal distance from previous prime (122621506121) and next prime (122621506123).

It is a self number, because there is not a number n which added to its sum of digits gives 122621506122.

It is not an unprimeable number, because it can be changed into a prime (122621506121) 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 7 ways as a sum of consecutive naturals, for example, 249230458 + ... + 249230949.

It is an arithmetic number, because the mean of its divisors is an integer number (15701534352).

Almost surely, 2^122621506122 is an apocalyptic number.

122621506122 is an abundant number, since it is smaller than the sum of its proper divisors (128603043510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122621506122 is a wasteful number, since it uses less digits than its factorization.

122621506122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498461453.

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 122621506122 in words is "one hundred twenty-two billion, six hundred twenty-one million, five hundred six thousand, one hundred twenty-two".