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22121342411 = 73160191773
BaseRepresentation
bin10100100110100010…
…001110010111001011
32010002200012121222012
4110212202032113023
5330301030424121
614055025050135
71412121210440
oct244642162713
963080177865
1022121342411
119421a14a73
12435448694b
132117028c2c
1410dbd299c7
158970ebc5b
hex52688e5cb

22121342411 has 4 divisors (see below), whose sum is σ = 25281534192. Its totient is φ = 18961150632.

The previous prime is 22121342393. The next prime is 22121342443. The reversal of 22121342411 is 11424312122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11424312122 = 25712156061.

It is a cyclic number.

It is not a de Polignac number, because 22121342411 - 210 = 22121341387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22121342471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1580095880 + ... + 1580095893.

It is an arithmetic number, because the mean of its divisors is an integer number (6320383548).

Almost surely, 222121342411 is an apocalyptic number.

22121342411 is a deficient number, since it is larger than the sum of its proper divisors (3160191781).

22121342411 is an equidigital number, since it uses as much as digits as its factorization.

22121342411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3160191780.

The product of its digits is 768, while the sum is 23.

Adding to 22121342411 its reverse (11424312122), we get a palindrome (33545654533).

The spelling of 22121342411 in words is "twenty-two billion, one hundred twenty-one million, three hundred forty-two thousand, four hundred eleven".

Divisors: 1 7 3160191773 22121342411