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122202021223 = 412980537103
BaseRepresentation
bin111000111001111001…
…1101101110101100111
3102200102110122212202001
41301303303231311213
54000232204134343
6132045553230131
711554165020232
oct1616363556547
9380373585661
10122202021223
1147909945277
121b825262347
13b6a64759c9
145cb398c419
1532a347144d
hex1c73cedd67

122202021223 has 4 divisors (see below), whose sum is σ = 125182558368. Its totient is φ = 119221484080.

The previous prime is 122202021191. The next prime is 122202021239. The reversal of 122202021223 is 322120202221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322120202221 = 562973572177.

It is a cyclic number.

It is not a de Polignac number, because 122202021223 - 25 = 122202021191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122202021223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122202021323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1490268511 + ... + 1490268592.

It is an arithmetic number, because the mean of its divisors is an integer number (31295639592).

Almost surely, 2122202021223 is an apocalyptic number.

122202021223 is a deficient number, since it is larger than the sum of its proper divisors (2980537145).

122202021223 is an equidigital number, since it uses as much as digits as its factorization.

122202021223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980537144.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 122202021223 its reverse (322120202221), we get a palindrome (444322223444).

The spelling of 122202021223 in words is "one hundred twenty-two billion, two hundred two million, twenty-one thousand, two hundred twenty-three".

Divisors: 1 41 2980537103 122202021223