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212122120200131 = 15115591167777167
BaseRepresentation
bin110000001110110010000111…
…100111111001111111000011
31000211001200021021102002200002
4300032302013213321333003
5210300402100232401011
62031051320131150215
762452213612031111
oct6016620747717703
91024050237362602
10212122120200131
1161652538927a89
121b95a830a4536b
1391490511a71cb
143a54aa0372ab1
15197cbb316cc3b
hexc0ec879f9fc3

212122120200131 has 16 divisors (see below), whose sum is σ = 213684933396480. Its totient is φ = 210561413479200.

The previous prime is 212122120200079. The next prime is 212122120200163. The reversal of 212122120200131 is 131002021221212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-212122120200131 is a prime.

It is a super-2 number, since 2×2121221202001312 (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 (212122120500131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2748832310 + ... + 2748909476.

It is an arithmetic number, because the mean of its divisors is an integer number (13355308337280).

Almost surely, 2212122120200131 is an apocalyptic number.

212122120200131 is a deficient number, since it is larger than the sum of its proper divisors (1562813196349).

212122120200131 is a wasteful number, since it uses less digits than its factorization.

212122120200131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90554.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 212122120200131 its reverse (131002021221212), we get a palindrome (343124141421343).

The spelling of 212122120200131 in words is "two hundred twelve trillion, one hundred twenty-two billion, one hundred twenty million, two hundred thousand, one hundred thirty-one".

Divisors: 1 151 1559 11677 77167 235409 1763227 11652217 18204443 120303353 901079059 2748870893 18165806303 136062937909 1404782252981 212122120200131