100200212021 has 16 divisors (see below), whose sum is σ = 124036209024. Its totient is φ = 78821014464.

The previous prime is 100200212017. The next prime is 100200212041. The reversal of 100200212021 is 120212002001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 100200212021 - 2² = 100200212017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100200211993 and 100200212011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100200212041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3166631 + ... + 3198116.

It is an arithmetic number, because the mean of its divisors is an integer number (7752263064).

Almost surely, 2^100200212021 is an apocalyptic number.

It is an amenable number.

100200212021 is a deficient number, since it is larger than the sum of its proper divisors (23835997003).

100200212021 is a wasteful number, since it uses less digits than its factorization.

100200212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6364940.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100200212021 its reverse (120212002001), we get a palindrome (220412214022).

The spelling of 100200212021 in words is "one hundred billion, two hundred million, two hundred twelve thousand, twenty-one".