Search a number
-
+
10101222121079 is a prime number
BaseRepresentation
bin1001001011111101111111…
…0000011001111001110111
31022202200000112111210000202
42102333133300121321313
52310444300330333304
633252234250231115
72061534462233105
oct222773760317167
938680015453022
1010101222121079
1132449a4604841
121171826a2549b
13583705c0611b
1426cc8a5dac75
15127b515d781e
hex92fdfc19e77

10101222121079 has 2 divisors, whose sum is σ = 10101222121080. Its totient is φ = 10101222121078.

The previous prime is 10101222121057. The next prime is 10101222121097. The reversal of 10101222121079 is 97012122210101.

Together with next prime (10101222121097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10101222121079 - 212 = 10101222116983 is a prime.

It is a super-2 number, since 2×101012221210792 (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 (10101222121009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050611060539 + 5050611060540.

It is an arithmetic number, because the mean of its divisors is an integer number (5050611060540).

Almost surely, 210101222121079 is an apocalyptic number.

10101222121079 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101222121079 is an equidigital number, since it uses as much as digits as its factorization.

10101222121079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 29.

The spelling of 10101222121079 in words is "ten trillion, one hundred one billion, two hundred twenty-two million, one hundred twenty-one thousand, seventy-nine".