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121221313012333 = 1439192674372241
BaseRepresentation
bin11011100100000000001001…
…010011010010001001101101
3120220012122101201200100111001
4123210000021103102021231
5111342042222112343313
61105452145153200301
734350644066411332
oct3344001123221155
9526178351610431
10121221313012333
1135696740a64986
1211719604560091
135284175431c81
1421d11dddca989
15e033a04bcadd
hex6e40094d226d

121221313012333 has 8 divisors (see below), whose sum is σ = 121311876752640. Its totient is φ = 121130758057920.

The previous prime is 121221313012301. The next prime is 121221313012339. The reversal of 121221313012333 is 333210313122121.

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 121221313012333 - 25 = 121221313012301 is a prime.

It is a super-2 number, since 2×1212213130123332 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121221313012339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25539093 + ... + 29911333.

It is an arithmetic number, because the mean of its divisors is an integer number (15163984594080).

Almost surely, 2121221313012333 is an apocalyptic number.

It is an amenable number.

121221313012333 is a deficient number, since it is larger than the sum of its proper divisors (90563740307).

121221313012333 is a wasteful number, since it uses less digits than its factorization.

121221313012333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4392947.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 121221313012333 its reverse (333210313122121), we get a palindrome (454431626134454).

The spelling of 121221313012333 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, three hundred thirteen million, twelve thousand, three hundred thirty-three".

Divisors: 1 1439 19267 4372241 27725213 6291654799 84239967347 121221313012333