2201000122121 has 8 divisors (see below), whose sum is σ = 2218713191424. Its totient is φ = 2183293027440.

The previous prime is 2201000122031. The next prime is 2201000122147. The reversal of 2201000122121 is 1212210001022.

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 2201000122121 - 2¹⁸ = 2200999859977 is a prime.

It is a super-3 number, since 3×2201000122121³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201000122096 and 2201000122105.

It is not an unprimeable number, because it can be changed into a prime (2201000122721) 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 7 ways as a sum of consecutive naturals, for example, 752435 + ... + 2228936.

It is an arithmetic number, because the mean of its divisors is an integer number (277339148928).

Almost surely, 2^{2201000122121} is an apocalyptic number.

It is an amenable number.

2201000122121 is a deficient number, since it is larger than the sum of its proper divisors (17713069303).

2201000122121 is a wasteful number, since it uses less digits than its factorization.

2201000122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2987311.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2201000122121 its reverse (1212210001022), we get a palindrome (3413210123143).

The spelling of 2201000122121 in words is "two trillion, two hundred one billion, one hundred twenty-two thousand, one hundred twenty-one".