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121220313331322 = 21912172411460731
BaseRepresentation
bin11011100011111111001101…
…101101110011011001111010
3120220012112211001121021221102
4123203333031231303121322
5111342033200203100242
61105451502042411402
734350610240306412
oct3343771555633172
9526175731537842
10121220313331322
1135696278739827
1211719385800b62
1352840462a704a
1421d1147323642
15e03342850e32
hex6e3fcdb7367a

121220313331322 has 16 divisors (see below), whose sum is σ = 182783428498944. Its totient is φ = 60292507188000.

The previous prime is 121220313331319. The next prime is 121220313331339. The reversal of 121220313331322 is 223133313022121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82255697 + ... + 83716427.

It is an arithmetic number, because the mean of its divisors is an integer number (11423964281184).

Almost surely, 2121220313331322 is an apocalyptic number.

121220313331322 is a deficient number, since it is larger than the sum of its proper divisors (61563115167622).

121220313331322 is a wasteful number, since it uses less digits than its factorization.

121220313331322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678165.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 121220313331322 its reverse (223133313022121), we get a palindrome (344353626353443).

The spelling of 121220313331322 in words is "one hundred twenty-one trillion, two hundred twenty billion, three hundred thirteen million, three hundred thirty-one thousand, three hundred twenty-two".

Divisors: 1 2 191 382 217241 434482 1460731 2921462 41493031 82986062 278999621 557999242 317330663171 634661326342 60610156665661 121220313331322