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121222120130131 = 2271969727111649
BaseRepresentation
bin11011100100000000111001…
…011010001100011001010011
3120220012201110222102011221211
4123210000321122030121103
5111342100400223131011
61105452401224400551
734351003066661416
oct3344007132143123
9526181428364854
10121222120130131
1135697015617489
12117197aa916157
135284273707877
1421d1279289b7d
15e033eb29db21
hex6e403968c653

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".

Divisors: 1 227 19697 4471219 27111649 6154344323 534018150353 121222120130131