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2222002201121 = 19991111556879
BaseRepresentation
bin100000010101011001101…
…001101110001000100001
321212102101011011011022022
4200111121221232020201
5242401130030413441
64420435042351225
7316351200036023
oct40253151561041
97772334134268
102222002201121
1178738935137a
122ba78005b515
131316c2cc6361
147978cb26013
153cbecd6784b
hex20559a6e221

2222002201121 has 4 divisors (see below), whose sum is σ = 2223113760000. Its totient is φ = 2220890642244.

The previous prime is 2222002200961. The next prime is 2222002201123. The reversal of 2222002201121 is 1211022002222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2222002201121 - 230 = 2220928459297 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 2222002201121.

It is not an unprimeable number, because it can be changed into a prime (2222002201123) 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 3 ways as a sum of consecutive naturals, for example, 555776441 + ... + 555780438.

It is an arithmetic number, because the mean of its divisors is an integer number (555778440000).

Almost surely, 22222002201121 is an apocalyptic number.

It is an amenable number.

2222002201121 is a deficient number, since it is larger than the sum of its proper divisors (1111558879).

2222002201121 is a wasteful number, since it uses less digits than its factorization.

2222002201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111558878.

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

Adding to 2222002201121 its reverse (1211022002222), we get a palindrome (3433024203343).

The spelling of 2222002201121 in words is "two trillion, two hundred twenty-two billion, two million, two hundred one thousand, one hundred twenty-one".

Divisors: 1 1999 1111556879 2222002201121