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121122130132221 = 342623899472163
BaseRepresentation
bin11011100010100011110001…
…100010100111110011111101
3120212212011101111120222222220
4123202203301202213303331
5111333431110303212341
61105334423255555553
734340533204011501
oct3342436142476375
9525764344528886
10121122130132221
11356586748a3079
121170234438bbb9
1352779c9cba92a
1421ca4b16b0301
15e009e7d8ca66
hex6e28f18a7cfd

121122130132221 has 8 divisors (see below), whose sum is σ = 161496228447840. Its totient is φ = 80748059285712.

The previous prime is 121122130132051. The next prime is 121122130132243. The reversal of 121122130132221 is 122231031221121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121122130132221 - 223 = 121122121743613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121122130132191 and 121122130132200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122130132021) 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, 8051086 + ... + 17523248.

It is an arithmetic number, because the mean of its divisors is an integer number (20187028555980).

Almost surely, 2121122130132221 is an apocalyptic number.

It is an amenable number.

121122130132221 is a deficient number, since it is larger than the sum of its proper divisors (40374098315619).

121122130132221 is an equidigital number, since it uses as much as digits as its factorization.

121122130132221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13734555.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 121122130132221 its reverse (122231031221121), we get a palindrome (243353161353342).

The spelling of 121122130132221 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, one hundred thirty million, one hundred thirty-two thousand, two hundred twenty-one".

Divisors: 1 3 4262389 9472163 12787167 28416489 40374043377407 121122130132221