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12212119979 = 101646918691
BaseRepresentation
bin10110101111110011…
…00010100110101011
31011112002020222020222
423113321202212223
5200002300314404
65335444040255
7611425210223
oct132771424653
934462228228
1012212119979
1151a7472544
12244999308b
1311c80a35c7
1483bc77083
154b71c0dbe
hex2d7e629ab

12212119979 has 8 divisors (see below), whose sum is σ = 12335598480. Its totient is φ = 12088692000.

The previous prime is 12212119973. The next prime is 12212119981. The reversal of 12212119979 is 97991121221.

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 12212119979 - 220 = 12211071403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212119973) 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, 644024 + ... + 662714.

It is an arithmetic number, because the mean of its divisors is an integer number (1541949810).

Almost surely, 212212119979 is an apocalyptic number.

12212119979 is a deficient number, since it is larger than the sum of its proper divisors (123478501).

12212119979 is a wasteful number, since it uses less digits than its factorization.

12212119979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25261.

The product of its digits is 40824, while the sum is 44.

The spelling of 12212119979 in words is "twelve billion, two hundred twelve million, one hundred nineteen thousand, nine hundred seventy-nine".

Divisors: 1 101 6469 18691 653369 1887791 120912079 12212119979