100210112220121 has 4 divisors (see below), whose sum is σ = 100211004381492. Its totient is φ = 100209220058752.

The previous prime is 100210112220109. The next prime is 100210112220149. The reversal of 100210112220121 is 121022211012001.

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 54624456778896 + 45585655441225 = 7390836^2 + 6751715^2 .

It is a cyclic number.

It is not a de Polignac number, because 100210112220121 - 2⁵ = 100210112220089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100210112220095 and 100210112220104.

It is not an unprimeable number, because it can be changed into a prime (100210112520121) 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, 445912180 + ... + 446136853.

It is an arithmetic number, because the mean of its divisors is an integer number (25052751095373).

Almost surely, 2^{100210112220121} is an apocalyptic number.

It is an amenable number.

100210112220121 is a deficient number, since it is larger than the sum of its proper divisors (892161371).

100210112220121 is an equidigital number, since it uses as much as digits as its factorization.

100210112220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892161370.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 100210112220121 its reverse (121022211012001), we get a palindrome (221232323232122).

The spelling of 100210112220121 in words is "one hundred trillion, two hundred ten billion, one hundred twelve million, two hundred twenty thousand, one hundred twenty-one".