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1214222120321 = 7612843611523
BaseRepresentation
bin10001101010110101010…
…001110011010110000001
311022002010020010200100112
4101222311101303112001
5124343211330322241
62325450030001105
7153503361505460
oct21526521632601
94262106120315
101214222120321
11428a48806641
121773a8646195
138a667c27412
1442aa93009d7
15218b85971eb
hex11ab5473581

1214222120321 has 8 divisors (see below), whose sum is σ = 1410431315904. Its totient is φ = 1023700147920.

The previous prime is 1214222120317. The next prime is 1214222120327. The reversal of 1214222120321 is 1230212224121.

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 1214222120321 - 22 = 1214222120317 is a prime.

It is a super-2 number, since 2×12142221203212 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1214222120327) 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, 1421805335 + ... + 1421806188.

It is an arithmetic number, because the mean of its divisors is an integer number (176303914488).

Almost surely, 21214222120321 is an apocalyptic number.

It is an amenable number.

1214222120321 is a deficient number, since it is larger than the sum of its proper divisors (196209195583).

1214222120321 is an equidigital number, since it uses as much as digits as its factorization.

1214222120321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843611591.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1214222120321 its reverse (1230212224121), we get a palindrome (2444434344442).

The spelling of 1214222120321 in words is "one trillion, two hundred fourteen billion, two hundred twenty-two million, one hundred twenty thousand, three hundred twenty-one".

Divisors: 1 7 61 427 2843611523 19905280661 173460302903 1214222120321