100202120212121 has 8 divisors (see below), whose sum is σ = 101409756235200. Its totient is φ = 98994493274032.

The previous prime is 100202120212091. The next prime is 100202120212169. The reversal of 100202120212121 is 121212021202001.

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 100202120212121 - 2⁶ = 100202120212057 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 100202120212121.

It is not an unprimeable number, because it can be changed into a prime (100202120212421) 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, 21397955 + ... + 25656903.

It is an arithmetic number, because the mean of its divisors is an integer number (12676219529400).

Almost surely, 2^{100202120212121} is an apocalyptic number.

It is an amenable number.

100202120212121 is a deficient number, since it is larger than the sum of its proper divisors (1207636023079).

100202120212121 is an equidigital number, since it uses as much as digits as its factorization.

100202120212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4542495.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100202120212121 its reverse (121212021202001), we get a palindrome (221414141414122).

The spelling of 100202120212121 in words is "one hundred trillion, two hundred two billion, one hundred twenty million, two hundred twelve thousand, one hundred twenty-one".