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2022121121 is a prime number
BaseRepresentation
bin111100010000111…
…0001111010100001
312012220222101200212
41320201301322201
513120130333441
6532353023505
7101052513566
oct17041617241
95186871625
102022121121
11948486589
12485254b95
13262c21097
141527b686d
15bc7d1eeb
hex78871ea1

2022121121 has 2 divisors, whose sum is σ = 2022121122. Its totient is φ = 2022121120.

The previous prime is 2022121093. The next prime is 2022121141. The reversal of 2022121121 is 1211212202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1439140096 + 582981025 = 37936^2 + 24145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2022121121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2022121096 and 2022121105.

It is not a weakly prime, because it can be changed into another prime (2022121141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011060560 + 1011060561.

It is an arithmetic number, because the mean of its divisors is an integer number (1011060561).

Almost surely, 22022121121 is an apocalyptic number.

It is an amenable number.

2022121121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2022121121 is an equidigital number, since it uses as much as digits as its factorization.

2022121121 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2022121121 is about 44968.0010785447. The cubic root of 2022121121 is about 1264.5491727259.

Adding to 2022121121 its reverse (1211212202), we get a palindrome (3233333323).

The spelling of 2022121121 in words is "two billion, twenty-two million, one hundred twenty-one thousand, one hundred twenty-one".