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1212210120986 = 25910272967127
BaseRepresentation
bin10001101000111101010…
…110101000100100011010
311021212221000012112010122
4101220331112220210122
5124330101242332421
62324514233513242
7153402461006264
oct21507526504432
94255830175118
101212210120986
11428106013777
12176b26872822
138a40713b477
1442958000b34
15217ebb142ab
hex11a3d5a891a

1212210120986 has 8 divisors (see below), whose sum is σ = 1849134083040. Its totient is φ = 595832093308.

The previous prime is 1212210120983. The next prime is 1212210120997. The reversal of 1212210120986 is 6890210122121.

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

It is a super-2 number, since 2×12122101209862 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212210120983) 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 3 ways as a sum of consecutive naturals, for example, 5136483446 + ... + 5136483681.

It is an arithmetic number, because the mean of its divisors is an integer number (231141760380).

Almost surely, 21212210120986 is an apocalyptic number.

1212210120986 is a deficient number, since it is larger than the sum of its proper divisors (636923962054).

1212210120986 is a wasteful number, since it uses less digits than its factorization.

1212210120986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10272967188.

The product of its (nonzero) digits is 6912, while the sum is 35.

The spelling of 1212210120986 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred twenty thousand, nine hundred eighty-six".

Divisors: 1 2 59 118 10272967127 20545934254 606105060493 1212210120986