122212810000 has 100 divisors (see below), whose sum is σ = 296061114492. Its totient is φ = 48856768000.

The previous prime is 122212809977. The next prime is 122212810033. The reversal of 122212810000 is 18212221.

It can be written as a sum of positive squares in 10 ways, for example, as 98427767824 + 23785042176 = 313732^2 + 154224^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×122212810000² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122212810000.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 29567934 + ... + 29572066.

Almost surely, 2^122212810000 is an apocalyptic number.

122212810000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122212810000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148030557246).

122212810000 is an abundant number, since it is smaller than the sum of its proper divisors (173848304492).

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

122212810000 is an equidigital number, since it uses as much as digits as its factorization.

122212810000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7118 (or 7097 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The spelling of 122212810000 in words is "one hundred twenty-two billion, two hundred twelve million, eight hundred ten thousand".