100000020212001 has 72 divisors (see below), whose sum is σ = 183585821415360. Its totient is φ = 51321661492608.

The previous prime is 100000020211969. The next prime is 100000020212069. The reversal of 100000020212001 is 100212020000001.

It is not a de Polignac number, because 100000020212001 - 2⁵ = 100000020211969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (100000020212801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 126529291 + ... + 127317168.

Almost surely, 2^{100000020212001} is an apocalyptic number.

It is an amenable number.

100000020212001 is a deficient number, since it is larger than the sum of its proper divisors (83585801203359).

100000020212001 is a wasteful number, since it uses less digits than its factorization.

100000020212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253846535 (or 253846519 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 100000020212001 its reverse (100212020000001), we get a palindrome (200212040212002).

The spelling of 100000020212001 in words is "one hundred trillion, twenty million, two hundred twelve thousand, one".