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1212223030001 = 8340954416563
BaseRepresentation
bin10001101000111110000…
…111111000001011110001
311021212221220111100222022
4101220332013320023301
5124330113043430001
62324515414321225
7153403005513014
oct21507607701361
94255856440868
101212223030001
11428112330485
12176b2b059215
138a409a0b139
1442959a0137b
15217ecd1411b
hex11a3e1f82f1

1212223030001 has 16 divisors (see below), whose sum is σ = 1230241158720. Its totient is φ = 1194288199680.

The previous prime is 1212223029991. The next prime is 1212223030019. The reversal of 1212223030001 is 1000303222121.

It is a cyclic number.

It is not a de Polignac number, because 1212223030001 - 218 = 1212222767857 is a prime.

It is a super-3 number, since 3×12122230300013 (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212223060001) 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, 184702346 + ... + 184708908.

It is an arithmetic number, because the mean of its divisors is an integer number (76890072420).

Almost surely, 21212223030001 is an apocalyptic number.

It is an amenable number.

1212223030001 is a deficient number, since it is larger than the sum of its proper divisors (18018128719).

1212223030001 is an equidigital number, since it uses as much as digits as its factorization.

1212223030001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12496.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1212223030001 its reverse (1000303222121), we get a palindrome (2212526252122).

The spelling of 1212223030001 in words is "one trillion, two hundred twelve billion, two hundred twenty-three million, thirty thousand, one".

Divisors: 1 83 409 5441 6563 33947 451603 544729 2225369 2684267 35709283 184705627 222794161 2963870489 14605096747 1212223030001