Base | Representation |
---|---|
bin | 11011100100000000111001… |
… | …011010001100011001010011 |
3 | 120220012201110222102011221211 |
4 | 123210000321122030121103 |
5 | 111342100400223131011 |
6 | 1105452401224400551 |
7 | 34351003066661416 |
oct | 3344007132143123 |
9 | 526181428364854 |
10 | 121222120130131 |
11 | 35697015617489 |
12 | 117197aa916157 |
13 | 5284273707877 |
14 | 21d1279289b7d |
15 | e033eb29db21 |
hex | 6e403968c653 |
121222120130131 has 8 divisors (see below), whose sum is σ = 121762324227600. Its totient is φ = 120681970295808.
The previous prime is 121222120130081. The next prime is 121222120130141. The reversal of 121222120130131 is 131031021222121.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 121222120130131 - 213 = 121222120121939 is a prime.
It is a super-2 number, since 2×1212221201301312 (a number of 29 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (121222120130141) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9084606 + ... + 18027043.
It is an arithmetic number, because the mean of its divisors is an integer number (15220290528450).
Almost surely, 2121222120130131 is an apocalyptic number.
121222120130131 is a deficient number, since it is larger than the sum of its proper divisors (540204097469).
121222120130131 is a wasteful number, since it uses less digits than its factorization.
121222120130131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27131573.
The product of its (nonzero) digits is 288, while the sum is 22.
Adding to 121222120130131 its reverse (131031021222121), we get a palindrome (252253141352252).
The spelling of 121222120130131 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred twenty million, one hundred thirty thousand, one hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.082 sec. • engine limits •