100220020202121 has 16 divisors (see below), whose sum is σ = 133705639393536. Its totient is φ = 66773877970176.

The previous prime is 100220020202047. The next prime is 100220020202143. The reversal of 100220020202121 is 121202020022001.

It is not a de Polignac number, because 100220020202121 - 2⁷ = 100220020201993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100220020202121.

It is not an unprimeable number, because it can be changed into a prime (100220020202171) 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, 100098831 + ... + 101095083.

It is an arithmetic number, because the mean of its divisors is an integer number (8356602462096).

Almost surely, 2^{100220020202121} is an apocalyptic number.

It is an amenable number.

100220020202121 is a deficient number, since it is larger than the sum of its proper divisors (33485619191415).

100220020202121 is a wasteful number, since it uses less digits than its factorization.

100220020202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016032.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 100220020202121 its reverse (121202020022001), we get a palindrome (221422040224122).

The spelling of 100220020202121 in words is "one hundred trillion, two hundred twenty billion, twenty million, two hundred two thousand, one hundred twenty-one".