100122200201212 has 144 divisors (see below), whose sum is σ = 208423178097120. Its totient is φ = 41946627340800.

The previous prime is 100122200201207. The next prime is 100122200201213. The reversal of 100122200201212 is 212102002221001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122200201213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3546771114 + ... + 3546799342.

It is an arithmetic number, because the mean of its divisors is an integer number (1447383181230).

Almost surely, 2^{100122200201212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100122200201212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104211589048560).

100122200201212 is an abundant number, since it is smaller than the sum of its proper divisors (108300977895908).

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

100122200201212 is a wasteful number, since it uses less digits than its factorization.

100122200201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29532 (or 29523 counting only the distinct ones).

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

Adding to 100122200201212 its reverse (212102002221001), we get a palindrome (312224202422213).

The spelling of 100122200201212 in words is "one hundred trillion, one hundred twenty-two billion, two hundred million, two hundred one thousand, two hundred twelve".