Search a number
-
+
2220220001009 is a prime number
BaseRepresentation
bin100000010011101111011…
…011001010101011110001
321212020202221122000100202
4200103233123022223301
5242334002310013014
64415542135524545
7316256056425233
oct40235733125361
97766687560322
102220220001009
1178665434501a
122ba363229755
1313149a9c918a
1479660164253
153cb466783de
hex204ef6caaf1

2220220001009 has 2 divisors, whose sum is σ = 2220220001010. Its totient is φ = 2220220001008.

The previous prime is 2220220000979. The next prime is 2220220001029. The reversal of 2220220001009 is 9001000220222.

It is an a-pointer prime, because the next prime (2220220001029) can be obtained adding 2220220001009 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1998397840609 + 221822160400 = 1413647^2 + 470980^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220220001009 - 232 = 2215925033713 is a prime.

It is a super-2 number, since 2×22202200010092 (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2220220001029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110110000504 + 1110110000505.

It is an arithmetic number, because the mean of its divisors is an integer number (1110110000505).

Almost surely, 22220220001009 is an apocalyptic number.

It is an amenable number.

2220220001009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220220001009 is an equidigital number, since it uses as much as digits as its factorization.

2220220001009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 2220220001009 in words is "two trillion, two hundred twenty billion, two hundred twenty million, one thousand, nine".