Search a number
-
+
20021022002207 is a prime number
BaseRepresentation
bin1001000110101100000011…
…11001111000110000011111
32121212222202110001212101002
410203112001321320300133
510111011023113032312
6110325310332340515
74134320406055022
oct443260171706037
977788673055332
1020021022002207
11641995aa78486
1222b425b91473b
13b22c886303b5
144d304617b1b9
1524abd56cc4c2
hex123581e78c1f

20021022002207 has 2 divisors, whose sum is σ = 20021022002208. Its totient is φ = 20021022002206.

The previous prime is 20021022002173. The next prime is 20021022002243. The reversal of 20021022002207 is 70220022012002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20021022002207 - 26 = 20021022002143 is a prime.

It is a super-2 number, since 2×200210220022072 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20021028002207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010511001103 + 10010511001104.

It is an arithmetic number, because the mean of its divisors is an integer number (10010511001104).

Almost surely, 220021022002207 is an apocalyptic number.

20021022002207 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021022002207 is an equidigital number, since it uses as much as digits as its factorization.

20021022002207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 20.

Adding to 20021022002207 its reverse (70220022012002), we get a palindrome (90241044014209).

The spelling of 20021022002207 in words is "twenty trillion, twenty-one billion, twenty-two million, two thousand, two hundred seven".