Search a number
-
+
122022222101 = 139386324777
BaseRepresentation
bin111000110100100010…
…1110101100100010101
3102122221221100010201022
41301221011311210111
53444400142101401
6132020051410525
711546552526443
oct1615105654425
9378857303638
10122022222101
11478273aa55a
121b794bb3a45
13b6781423b0
145c97b47b93
1532927a771b
hex1c69175915

122022222101 has 4 divisors (see below), whose sum is σ = 131408546892. Its totient is φ = 112635897312.

The previous prime is 122022222083. The next prime is 122022222139. The reversal of 122022222101 is 101222220221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101222220221 = 653155011057.

It can be written as a sum of positive squares in 2 ways, for example, as 34837849201 + 87184372900 = 186649^2 + 295270^2 .

It is a cyclic number.

It is not a de Polignac number, because 122022222101 - 210 = 122022221077 is a prime.

It is a super-3 number, since 3×1220222221013 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122022222101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122022222181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4693162376 + ... + 4693162401.

It is an arithmetic number, because the mean of its divisors is an integer number (32852136723).

Almost surely, 2122022222101 is an apocalyptic number.

It is an amenable number.

122022222101 is a deficient number, since it is larger than the sum of its proper divisors (9386324791).

122022222101 is an equidigital number, since it uses as much as digits as its factorization.

122022222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9386324790.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122022222101 its reverse (101222220221), we get a palindrome (223244442322).

The spelling of 122022222101 in words is "one hundred twenty-two billion, twenty-two million, two hundred twenty-two thousand, one hundred one".

Divisors: 1 13 9386324777 122022222101