2201020100121 has 16 divisors (see below), whose sum is σ = 3111235624448. Its totient is φ = 1381634236800.

The previous prime is 2201020100117. The next prime is 2201020100131. The reversal of 2201020100121 is 1210010201022.

It is not a de Polignac number, because 2201020100121 - 2² = 2201020100117 is a prime.

It is a super-2 number, since 2×2201020100121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201020100097 and 2201020100106.

It is not an unprimeable number, because it can be changed into a prime (2201020100131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319819300 + ... + 319826181.

It is an arithmetic number, because the mean of its divisors is an integer number (194452226528).

Almost surely, 2^{2201020100121} is an apocalyptic number.

It is an amenable number.

2201020100121 is a deficient number, since it is larger than the sum of its proper divisors (910215524327).

2201020100121 is a wasteful number, since it uses less digits than its factorization.

2201020100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639645552.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2201020100121 its reverse (1210010201022), we get a palindrome (3411030301143).

It can be divided in two parts, 22010201001 and 21, that added together give a palindrome (22010201022).

The spelling of 2201020100121 in words is "two trillion, two hundred one billion, twenty million, one hundred thousand, one hundred twenty-one".