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22021202002021 is a prime number
BaseRepresentation
bin1010000000111001101011…
…11011000100000001100101
32212222012120102121122122221
411000130311323010001211
510341243410203031041
6114500222303352341
74431656625410635
oct500346573040145
985865512548587
1022021202002021
117020159490842
122577a33bb26b1
13c3978a268521
14561b908c46c5
15282c4e3b32d1
hex140735ec4065

22021202002021 has 2 divisors, whose sum is σ = 22021202002022. Its totient is φ = 22021202002020.

The previous prime is 22021202001989. The next prime is 22021202002039. The reversal of 22021202002021 is 12020020212022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13623296450625 + 8397905551396 = 3690975^2 + 2897914^2 .

It is a cyclic number.

It is not a de Polignac number, because 22021202002021 - 25 = 22021202001989 is a prime.

It is a super-2 number, since 2×220212020020212 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22021202001986 and 22021202002004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22021202002621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010601001010 + 11010601001011.

It is an arithmetic number, because the mean of its divisors is an integer number (11010601001011).

Almost surely, 222021202002021 is an apocalyptic number.

It is an amenable number.

22021202002021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021202002021 is an equidigital number, since it uses as much as digits as its factorization.

22021202002021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22021202002021 its reverse (12020020212022), we get a palindrome (34041222214043).

The spelling of 22021202002021 in words is "twenty-two trillion, twenty-one billion, two hundred two million, two thousand, twenty-one".