100000212121122 has 48 divisors (see below), whose sum is σ = 214488974452032. Its totient is φ = 31022392420800.

The previous prime is 100000212121063. The next prime is 100000212121129. The reversal of 100000212121122 is 221121212000001.

It is not an unprimeable number, because it can be changed into a prime (100000212121129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264471129 + ... + 264848972.

It is an arithmetic number, because the mean of its divisors is an integer number (4468520301084).

Almost surely, 2^{100000212121122} is an apocalyptic number.

100000212121122 is an abundant number, since it is smaller than the sum of its proper divisors (114488762330910).

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

100000212121122 is a wasteful number, since it uses less digits than its factorization.

100000212121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529320203 (or 529320166 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 100000212121122 its reverse (221121212000001), we get a palindrome (321121424121123).

The spelling of 100000212121122 in words is "one hundred trillion, two hundred twelve million, one hundred twenty-one thousand, one hundred twenty-two".