122001222100000 has 72 divisors (see below), whose sum is σ = 300218167565316. Its totient is φ = 48800488800000.

The previous prime is 122001222099997. The next prime is 122001222100123. The reversal of 122001222100000 is 1222100221.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 5298227996944 + 116702994103056 = 2301788^2 + 10802916^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 609906111 + ... + 610106110.

Almost surely, 2^{122001222100000} is an apocalyptic number.

122001222100000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122001222100000 is an abundant number, since it is smaller than the sum of its proper divisors (178216945465316).

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

122001222100000 is an frugal number, since it uses more digits than its factorization.

122001222100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220012256 (or 1220012228 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122001222100000 its reverse (1222100221), we get a palindrome (122002444200221).

The spelling of 122001222100000 in words is "one hundred twenty-two trillion, one billion, two hundred twenty-two million, one hundred thousand".