100202020222121 has 8 divisors (see below), whose sum is σ = 100466409016320. Its totient is φ = 99937645828272.

The previous prime is 100202020222043. The next prime is 100202020222177. The reversal of 100202020222121 is 121222020202001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100202020222121 - 2²⁶ = 100201953113257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100202020222121.

It is not an unprimeable number, because it can be changed into a prime (100202020225121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10406675 + ... + 17569943.

It is an arithmetic number, because the mean of its divisors is an integer number (12558301127040).

Almost surely, 2^{100202020222121} is an apocalyptic number.

It is an amenable number.

100202020222121 is a deficient number, since it is larger than the sum of its proper divisors (264388794199).

100202020222121 is an equidigital number, since it uses as much as digits as its factorization.

100202020222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7200175.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 100202020222121 its reverse (121222020202001), we get a palindrome (221424040424122).

The spelling of 100202020222121 in words is "one hundred trillion, two hundred two billion, twenty million, two hundred twenty-two thousand, one hundred twenty-one".