100001201212122 has 48 divisors (see below), whose sum is σ = 228947696550720. Its totient is φ = 28525157531136.

The previous prime is 100001201212111. The next prime is 100001201212153. The reversal of 100001201212122 is 221212102100001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12614154 + ... + 18950442.

It is an arithmetic number, because the mean of its divisors is an integer number (4769743678140).

Almost surely, 2^{100001201212122} is an apocalyptic number.

100001201212122 is an abundant number, since it is smaller than the sum of its proper divisors (128946495338598).

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

100001201212122 is an frugal number, since it uses more digits than its factorization.

100001201212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6337527 (or 6336914 counting only the distinct ones).

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

Adding to 100001201212122 its reverse (221212102100001), we get a palindrome (321213303312123).

The spelling of 100001201212122 in words is "one hundred trillion, one billion, two hundred one million, two hundred twelve thousand, one hundred twenty-two".