100222121001212 has 144 divisors (see below), whose sum is σ = 216983219846400. Its totient is φ = 40272562471680.

The previous prime is 100222121001181. The next prime is 100222121001241. The reversal of 100222121001212 is 212100121222001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168575489 + ... + 169168967.

It is an arithmetic number, because the mean of its divisors is an integer number (1506827915600).

Almost surely, 2^{100222121001212} 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 100222121001212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108491609923200).

100222121001212 is an abundant number, since it is smaller than the sum of its proper divisors (116761098845188).

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

100222121001212 is a wasteful number, since it uses less digits than its factorization.

100222121001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593984 (or 593975 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100222121001212 its reverse (212100121222001), we get a palindrome (312322242223213).

The spelling of 100222121001212 in words is "one hundred trillion, two hundred twenty-two billion, one hundred twenty-one million, one thousand, two hundred twelve".