122001222211000 has 256 divisors, whose sum is σ = 330260919131520. Its totient is φ = 41690444800000.

The previous prime is 122001222210971. The next prime is 122001222211007. The reversal of 122001222211000 is 112222100221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001222211007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 121611450 + ... + 122610550.

Almost surely, 2^{122001222211000} is an apocalyptic number.

122001222211000 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 122001222211000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165130459565760).

122001222211000 is an abundant number, since it is smaller than the sum of its proper divisors (208259696920520).

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

122001222211000 is a wasteful number, since it uses less digits than its factorization.

122001222211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999803 (or 999789 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122001222211000 its reverse (112222100221), we get a palindrome (122113444311221).

The spelling of 122001222211000 in words is "one hundred twenty-two trillion, one billion, two hundred twenty-two million, two hundred eleven thousand".