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12122210019 = 34198554553
BaseRepresentation
bin10110100101000101…
…00011111011100011
31011021211002001222110
423102202203323203
5144311241210034
65322513010403
7606254041113
oct132242437343
934254061873
1012122210019
115160742897
122423853a03
1311b258364a
1482dd51043
154ae360de9
hex2d28a3ee3

12122210019 has 8 divisors (see below), whose sum is σ = 16557165072. Its totient is φ = 7884364160.

The previous prime is 12122210011. The next prime is 12122210029. The reversal of 12122210019 is 91001222121.

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 12122210019 - 23 = 12122210011 is a prime.

It is a super-2 number, since 2×121222100192 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12122209977 and 12122210004.

It is not an unprimeable number, because it can be changed into a prime (12122210011) 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, 49277154 + ... + 49277399.

It is an arithmetic number, because the mean of its divisors is an integer number (2069645634).

Almost surely, 212122210019 is an apocalyptic number.

12122210019 is a deficient number, since it is larger than the sum of its proper divisors (4434955053).

12122210019 is an equidigital number, since it uses as much as digits as its factorization.

12122210019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98554597.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 12122210019 in words is "twelve billion, one hundred twenty-two million, two hundred ten thousand, nineteen".

Divisors: 1 3 41 123 98554553 295663659 4040736673 12122210019