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2022022121 = 710110726729
BaseRepresentation
bin111100010000101…
…1001101111101001
312012220210100220012
41320201121233221
513120114201441
6532350541305
7101051622140
oct17041315751
95186710805
102022022121
11948419169
12485207835
13262bb7cc2
1415278c757
15bc7b29eb
hex78859be9

2022022121 has 16 divisors (see below), whose sum is σ = 2355661440. Its totient is φ = 1699900800.

The previous prime is 2022022117. The next prime is 2022022157. The reversal of 2022022121 is 1212202202.

It is a cyclic number.

It is not a de Polignac number, because 2022022121 - 22 = 2022022117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2022022096 and 2022022105.

It is not an unprimeable number, because it can be changed into a prime (2022022181) 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, 62285 + ... + 89013.

It is an arithmetic number, because the mean of its divisors is an integer number (147228840).

Almost surely, 22022022121 is an apocalyptic number.

It is an amenable number.

2022022121 is a deficient number, since it is larger than the sum of its proper divisors (333639319).

2022022121 is a wasteful number, since it uses less digits than its factorization.

2022022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26944.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2022022121 is about 44966.9002823188. The cubic root of 2022022121 is about 1264.5285355824.

Adding to 2022022121 its reverse (1212202202), we get a palindrome (3234224323).

The spelling of 2022022121 in words is "two billion, twenty-two million, twenty-two thousand, one hundred twenty-one".

Divisors: 1 7 101 107 707 749 10807 26729 75649 187103 2699629 2860003 18897403 20020021 288860303 2022022121