Base | Representation |
---|---|
bin | 111000011100010110… |
… | …0010010111001011010 |
3 | 102120212100102011101221 |
4 | 1300320230102321122 |
5 | 3441214304020442 |
6 | 131403323402254 |
7 | 11520462604645 |
oct | 1607054227132 |
9 | 376770364357 |
10 | 121210220122 |
11 | 47450011442 |
12 | 1b5a908338a |
13 | b578b49654 |
14 | 5c1bd76a5c |
15 | 324635e467 |
hex | 1c38b12e5a |
121210220122 has 8 divisors (see below), whose sum is σ = 181831578516. Its totient is φ = 60599693952.
The previous prime is 121210220113. The next prime is 121210220123. The reversal of 121210220122 is 221022012121.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 92780550801 + 28429669321 = 304599^2 + 168611^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 121210220096 and 121210220105.
It is not an unprimeable number, because it can be changed into a prime (121210220123) 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, 2680023 + ... + 2724874.
Almost surely, 2121210220122 is an apocalyptic number.
121210220122 is a deficient number, since it is larger than the sum of its proper divisors (60621358394).
121210220122 is a wasteful number, since it uses less digits than its factorization.
121210220122 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5416112.
The product of its (nonzero) digits is 64, while the sum is 16.
Adding to 121210220122 its reverse (221022012121), we get a palindrome (342232232243).
The spelling of 121210220122 in words is "one hundred twenty-one billion, two hundred ten million, two hundred twenty thousand, one hundred twenty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •