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1212122022213 = 32089193413439
BaseRepresentation
bin10001101000111000000…
…110100100000101000101
311021212200212102122100010
4101220320012210011011
5124324411214202323
62324501405340433
7153400341122454
oct21507006440505
94255625378303
101212122022213
11428070310873
12176b01267719
138a3c1b03a0b
144294a42ab9b
15217e4010c93
hex11a381a4145

1212122022213 has 8 divisors (see below), whose sum is σ = 1616936358400. Its totient is φ = 807694517088.

The previous prime is 1212122022187. The next prime is 1212122022257. The reversal of 1212122022213 is 3122202212121.

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

It is not a de Polignac number, because 1212122022213 - 216 = 1212121956677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212122022213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212122022263) 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, 96700453 + ... + 96712986.

It is an arithmetic number, because the mean of its divisors is an integer number (202117044800).

Almost surely, 21212122022213 is an apocalyptic number.

It is an amenable number.

1212122022213 is a deficient number, since it is larger than the sum of its proper divisors (404814336187).

1212122022213 is a wasteful number, since it uses less digits than its factorization.

1212122022213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193415531.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1212122022213 its reverse (3122202212121), we get a palindrome (4334324234334).

The spelling of 1212122022213 in words is "one trillion, two hundred twelve billion, one hundred twenty-two million, twenty-two thousand, two hundred thirteen".

Divisors: 1 3 2089 6267 193413439 580240317 404040674071 1212122022213