100200112211021 has 4 divisors (see below), whose sum is σ = 101192192530044. Its totient is φ = 99208031892000.

The previous prime is 100200112210981. The next prime is 100200112211083. The reversal of 100200112211021 is 120112211002001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53881266628996 + 46318845582025 = 7340386^2 + 6805795^2 .

It is a cyclic number.

It is not a de Polignac number, because 100200112211021 - 2³⁰ = 100199038469197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100200112210987 and 100200112211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100200112211921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496040159360 + ... + 496040159561.

It is an arithmetic number, because the mean of its divisors is an integer number (25298048132511).

Almost surely, 2^{100200112211021} is an apocalyptic number.

It is an amenable number.

100200112211021 is a deficient number, since it is larger than the sum of its proper divisors (992080319023).

100200112211021 is an equidigital number, since it uses as much as digits as its factorization.

100200112211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992080319022.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 100200112211021 its reverse (120112211002001), we get a palindrome (220312323213022).

The spelling of 100200112211021 in words is "one hundred trillion, two hundred billion, one hundred twelve million, two hundred eleven thousand, twenty-one".